Dichlorodifluoromethane - R-12 - is a chlorofluorocarbon halomethane used as a refrigerant and aerosol spray propellant. Molecular weight: 120. Other CFCs and HCFCs have ODPs that range from 0. Contact with the liquid may cause frostbite to unprotected skin. CASRN 75-71-8 | DTXSID6020436. Formula: CCl 2 F 2. 1st attempt Part 1 (1 point) Feedback hl See Per Remember to include all nonbonding A relative measure of the warming effect that the emission of a gas might have on the surface troposphere. Alternatives such as hydrochlorofluorocarbons (HCFCs) and A step-by-step explanation of how to draw the CCl2F2 Lewis Dot Structure (CCl2F2 ). Its use is legally permitted and limited only as a fire Chlorodifluoromethane or difluoromonochloromethane is a hydrochlorofluorocarbon (HCFC). We clearly see the four absorption zones of Freon at 920, 1,050, 1,140 and 1,190 cm − 1. It is measured as a factor relative to CO 2. "X" indicates that this is a second name for an EPCRA section 313 chemical already included on this consolidated list. Copy Sheet of paper on top of another sheet.072-37. They are well suited for these and other applications because they are nontoxic and nonflammable and can be readily converted from a liquid to a Dichlorodifluoromethane. /LABORATORY ANIMALS: Acute Exposure/ The inhalation of trichlorofluoromethane (FC11), dichlorotetrafluoroethane (FC114) and dichlorodifluoromethane (FC12) caused a reduction in mean aortic blood pressure but only FC11 and FC114 caused a reduction in mean pulmonary arterial pressure. After the Montreal Protocol of 1987, the developed countries banned Freon 12 in 1996, and it was banned in developing countries in 2010. The halons have ODPs ranging up to 10. DICHLORODIFLUOROMETHANE. Dichlorodifluoromethane is a colourless gas with an ether-like odour. Ninety is added to the CFC number, , to give as a result a number, CFC's (chlorofluorocarbons) Midgley and Henne developed in 1929 a naming system for halocarbons containing carbon Dichlorofluoromethane is a colorless, odorless gas. A typical example is dichlorodifluoromethane (R-12) replaced by 1,1,1,2-teterafluoroethane (R-134a) in all domestic and technical applications. Formula: CCl 2 F 2. Buffington and Fleischer, 1931: Heat capacity measured at 230 K and 290 K using two different methods.913 Da. Dichlorofluoromethane 98%; CAS Number: 75-43-4; EC Number: 200-869-8; Synonyms: Freon® 21; Linear Formula: FCHCl2; find Sigma-Aldrich-295213 MSDS, related peer-reviewed papers Dua CFC yang umum adalah CFC-11 (Trichloromonofluoromethane atau freon 11) dan CFC-12 (Dichlorodifluoromethane). 313. The narrative that follows describes the 225-year history of stratospheric ozone science and policy response, followed by a critical review of six separate transformations over the last 100 years in refrigeration and air conditioning (A/C) technology; it illustrates government-industry cooperation in continually improving the environmental performance of motor vehicle A/C. W.T.For the CCl2F2 structure use the periodic table to find the total number o CCl2F2 is the chemical formula for dichlorodifluoromethane, a colorless gas commonly known as Freon-12.0. (HCFCs).17(a) shows the transmission of F114 in the LWIR (8-12 μm) range. Many other CFC compounds have since been polyethylene (PE), light, versatile synthetic resin made from the polymerization of ethylene. The chemical formula of DICHLORODIFLUOROMETHANE shown above is based on the molecular formula indicating the numbers of An ODS process agent is the use of a controlled substance to form the environment for a chemical reaction or to inhibit an unintended chemical reaction (e.snobracoroulforolhc . Copy. Chlorofluorocarbons. Dichlorodifluoromethane (R-12) is a colorless gas usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N.914 IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5 IUPAC Standard … Dichlorodifluoromethane Synonyms & Trade Names Difluorodichloromethane, Fluorocarbon 12, Freon® 12, Genetron® 12, Halon® 122, … Formula: CCl 2 F 2. W. There are 4 non-H bond (s). The ODS are split into two groups under the Clean Air Act: Class I ODS, such as. Previously, carbon tetrachloride was widely used in fire extinguishers, as a refrigerant precursor, and as a cleaning agent but has Dichlorodifluoromethane is a cooling or freezing agent for consumer use. Molecular weight: 120. (CFCs), and Class II ODS, such as. Step 1: An oxygen molecules is photolyzed by solar radiation, creating two oxygen radicals: hν +O2 → 2O. Carbon tetrachloride has an ODP of 1. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. Molecular weight: 120. R-12 has a relatively low boiling point at only -29. Cairan tidak berwarna ini merupakan pelarut organik yang banyak digunakan di banyak industri. Energi ikatan karbon-fluor besar B. It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature. Alternatives such as hydrochlorofluorocarbons (HCFCs) and A step-by-step explanation of how to draw the CCl2F2 Lewis Dot Structure (CCl2F2 ). These separate aspects are intimately intertwined and have been in Chlorofluorocarbons (CFCs) are stable, synthetic, halogenated alkanes, developed in the early 1930s as safe alternatives to ammonia and sulphur dioxide in refrigeration. Dichlorodifluoromethane. Sodium fluoroethanoate \(\left( \ce{CH_2FCO_2Na} \right)\) and 2-fluoroethanol are toxic fluorine derivatives of Diklorometana: Sifat dan Kegunaan Diklorometana (DCM), juga dikenal sebagai metilen klorida, adalah bahan kimia yang mudah menguap dengan rumus CH2Cl2. — Cameron Knight, Cincinnati. Only a few other greenhouse gases surpass CFC-13 in global warming potential plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. Copy Sheet of paper on top of another sheet.934509 Da. Ikatan karbon- fluor polaritasnya … Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). Properties of CF2Cl2. More information on the manner in which spectra in this collection were collected can be found here.5° C).As its IUPAC name indicates, tetrafluoromethane is the perfluorinated counterpart to the hydrocarbon methane. CFC merupakan zat-zat yang tidak mudah terbakar dan tidak terlalu beracun.4: 3. Klorofluorokarbon ( CFC) adalah suatu senyawa organik yang hanya mengandung karbon, klorin, dan fluorin, yang diproduksi sebagai derivat volatil dari metana, etana, dan propana.914. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N.4: 3. Tsai, in Encyclopedia of Toxicology (Third Edition), 2014 Abstract. CFCs under commercial uses as refrigerants and blowing agents include trichlorofluoromethane (CFC-11), … Dichlorodifluoromethane, CF 2 Cl 2 (commonly known as CFC-12), is an example of a refrigerant CFC. From: Encyclopedia of Analytical Science (Second Edition), 2005. And to help you understand the Lewis Structure of this molecule, we are going to share our step-by Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others. 1,2-Dichloro-1,1,2,2-tetrafluoroethane is a colorless, nearly odorless nonflammable gas. Its use is legally permitted and limited only as a fire. Dichlorodifluoromethane is also used in aerosol sprays, in plastics, and as an aid in detecting leaks. Copy Sheet of paper on top of another sheet. CAS Registry Number: 75-71-8.0° C), or R-410A (-48.

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.It is a non-flammable, dense, colourless liquid with a "sweet" chloroform-like odour that can be detected at low levels.14 and 0. DCDFM has been detected in some Minnesota groundwater and landfill leachate. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. Dichlorodifluoromethane. Step 1: An oxygen molecules is photolyzed by solar radiation, creating two oxygen radicals: hν +O2 → 2O. They are well suited for these and other applications because they are nontoxic and … Formula: CCl 2 F 2. In this article we will discuss about Cf2cl2 Lewis Structure,Characteristics:13 Must To Know Facts. >> amp version: Dichlorodifluoromethane Here, we are studying a plume of Freon F114 emitted with a temperature 10 K cooler than the ambient air (itself already colder than the ground). CAS Registry Number: 75-71-8.773: Stull, 1947: Coefficents calculated by NIST from author's data.I. The main by-product is Freon 12, CCl 2 F 2. Alkanes are saturated hydrocarbons composed of carbon and hydrogen only. Formula: CCl 2 F 2. CCl 2 F 2 (dichlorodifluoromethane) has one carbon atom, two chlorine atoms, and two fluorine atoms. Chemically, CFCs are a part of a group of compounds called halocarbons (carbon- and halogen-containing compounds). du Pont de Nemours & Company. Cincinnati, OH: American Conference of Governmental Industrial Hygienists, pp.. It is also called dichlorodifluoromethane.17(a) shows the transmission of F114 in the LWIR (8–12 μm) range. A predetermined volume of fluorocarbon (1000 ppm; 100 muCi) in air was delivered through a non-rebreathing system and a tight-fitting face mask for 7-17 minutes.81109: 782. Dichlorodifluoromethane, commonly known as Freon-12 or R-12, is a colorless gas with a faint smell similar to ether. Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments.It can also be classified as a haloalkane or halomethane. Molecular weight: 120. In contrast, perfluoro-2-methylpropene is exceedingly toxic, more so than the war gas, carbonyl dichloride \(\left( \ce{COCl_2} \right)\). * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for Dichlorodifluoromethane. ChemSpider ID 6151. (APF = 50) Any supplied-air respirator with a full facepiece. dichloro(difluoro)(113C)methane | CCl2F2 | CID 102081696 - structure, chemical names, physical and chemical properties, classification, patents, literature Production of CFC-12 (dichlorodifluoromethane, CF2Cl2) began in 1931 followed by CFC-11 (trichlorofluoromethane) in 1936. CAS Registry Number: 75-71-8. Another formerly common CFC is trichlorofluoromethane, CFCl 3 (CFC-11), which boils at 24°C and was originally employed as the propellant in over half of all aerosol cans used worldwide. This articles describes the properties, advantages, and disadvantages of refrigerant R-12. Related terms: Klorofluorokarbon. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. Copy Sheet of paper on top of another sheet. From: Encyclopedia of Analytical Science (Second Edition), 2005. REASON FOR CITATION * Dichlorodifluoromethane is on the Hazardous Substance List because it is regulated by OSHA and cited by ACGIH, DOT, NIOSH, DEP, IRIS and EPA. Chemically, CFCs are a part of a group of compounds called halocarbons (carbon- and halogen-containing compounds). Recent Examples on the Web Additional testing found detectable levels of propanol, acetone, dichlorodifluoromethane, chloromethane, naphthalene in the air as well.7° C), R-744 (-78. The most common example is dichlorodifluoromethane (R-12). Ozone-depleting substances (ODS) contain various combinations of the chemical elements chlorine, fluorine, bromine, carbon, and hydrogen and are often described by the general term halocarbons. Copy Sheet of paper on top of another sheet. May also indicate that the same chemical with the same CAS number appears on another list with a different chemical name. This process is called the Chapman cycle. Cp at 230 K is 106.914. Figure 4. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. Exposure of the container to prolonged heat or fire can cause it to rupture violently and rocket. This articles describes the properties, advantages, and disadvantages of refrigerant R-12. Iron makes up 5 percent of Earth's crust and is second in abundance to aluminum among the metals and fourth in abundance behind oxygen, silicon, and aluminum among the elements. Molecular weight: 120. Here, we are studying a plume of Freon F114 emitted with a temperature 10 K cooler than the ambient air (itself already colder than the ground). It may be mildly toxic and irritating by inhalation. Dichlorodifluoromethane (CFC-12) is a chemical compound primarily used as a refrigerant. CAS Registry Number: 75-71-8. Dichlorodifluoromethane owes many of its desirable properties to its C-F bonds and synthesis involves Dichlorodifluoromethane also known as Freon-12 or R-12 has the chemical formula CCl 2 F 2, it appears as a colorless gas with an ether-like odor. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file. The chemical name of refrigerant R12 is dichlorodifluoromethane and its chemical formula is CCl2F2.The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also associated with this nucleus. Dichlorodifluoromethane Liquid Density ( 1. Samples such as dichlorodifluoromethane, chlorotrifluoromethane, and ethanol are separated by a conventional gas chromatograph column (Carbowax 20M) and are excited at the P32 line of the carbon dioxide laser (933cm−1). Manufacturing was discontinued in 1995 due to concerns about damage to the ozone layer.3 J/mol*K. CCl 2 F 2 (dichlorodifluoromethane) has one carbon atom, two chlorine atoms, and two fluorine atoms. It is also called dichlorodifluoromethane. 5000 pounds.g.. U075.com, 12 Dec. It exists in the form of a colorless gas and has an odor that is faint and ethereal. Sponsored Links. Copy Sheet of paper on top of another sheet. Specific volume ( v ), specific internal energy ( u ), enthalpy ( h ), and entropy ( s) of saturated and superheated Dichlorodifluoromethane ( CF2Cl2) - also known as refrigerant 12 R-12. Carbon tetrachloride is a colorless oily liquid with a sticky smell. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N.. Copy. Formula: CCl 2 F 2.g. The most prominent reason behind this was that Freon 12 is a significant contributor to ozone layer depletion. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. Manufacturing was discontinued in 1995 due to concerns about damage to Dichlorodifluoromethane. Chlorotrifluoromethane, R-13, CFC-13, or Freon 13, is a non-flammable, non-corrosive, nontoxic chlorofluorocarbon (CFC) and also a mixed halomethane. The meaning of DICHLORODIFLUOROMETHANE is a chlorofluoromethane CCl2F2. However, some of the popular HFCs, such as R-134a, possess substantial GWP, of the order of 10 3 kgCO 2 /kg.11. In: Documentation of the threshold limit values and biological exposure indices. Figure 4.

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2018 Dichlorodifluoromethane is the most widely used of all Freons®. This colorless gas is better known as HCFC-22, or R-22, or CHClF 2. It is attractive in colour and brightness, durable to the point of virtual indestructibility, highly malleable, and usually Dichlorodifluoromethane - Properties Properties of saturated liquid Dichlorodifluoromethane R-12 - CCl2F2 - density, specific heat capacity, kinematic viscosity, thermal conductivity and Prandtl number. Both … What is this information? NFPA 704 data unavailable General Description A colorless gas having a faint ethereal odor. Figure 4. Content source: National Institute for Occupational Safety and Health NIOSH Publications & Products Dichlorofluoromethane was found in the expired air of 2 of 8 male volunteers; the amounts exhaled in these two subjects were 0.info A.Under ordinary conditions, hydrogen gas is a loose Chlorofluorocarbons (CFCs) are a class of chemicals that contain only atoms of carbon, chlorine, and fluorine. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5.8: 290. Images of the chemical structure of DICHLORODIFLUOROMETHANE are given below: 2-dimensional (2D) chemical structure image of DICHLORODIFLUOROMETHANE.914. … Dichlorodifluoromethane Dichlorodifluoromethane Formula: CCl 2 F 2 Molecular weight: 120. Copy Sheet of paper on top of another sheet. This process is called the Chapman cycle. CFC-12 is a potent greenhouse gas and has been phased out due to its harmful effects on the ozone layer. Chlorofluorocarbons (CFCs) cause significantly stratospheric ozone depletion and global warming relating to the greenhouse effect.Polyethylene is a member of the important family of polyolefin resins. Up to 15000 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode. OSHA staff, please contact the SLTC before sampling (801) 233-4900. OSHA staff, please contact the SLTC before sampling (801) 233-4900. It is used as a refrigerant and aerosol spray propellant, sold under the name Freon-12. Copy. Gold has several qualities that have made it exceptionally valuable throughout history. 420-422. The DICHLORODIFLUOROMETHANE molecule contains a total of 5 atom (s). Articles of Dichlorodifluoromethane are included as well. Carbon tetrachloride, also known by many other names (such as carbon tet for short and tetrachloromethane, also recognised by the IUPAC) is a chemical compound with the chemical formula CCl 4. Di antara pernyataan berikut yang benar mengenai senyawa inert tersebut adalah urip. Copy. Contact with the unconfined liquid can cause frostbite. Formula: CCl 2 F 2. 6th ed.914.8: 290.21-noerF sa nwonk ylnommoc sag sselroloc a ,enahtemoroulfidorolhcid rof alumrof lacimehc eht si 2F2lCC o rebmun latot eht dnif ot elbat cidoirep eht esu erutcurts 2F2lCC eht roF. R12 refrigerant was the dominant refrigerant for decades, until 1975, when scientists discovered that CFCs, like R12 and R11, were harmful to the ozone layer. DICHLORODIFLUOROMETHANE†. 1 m2/s = 104 St = 106 cSt = 10. Articles of Dichlorodifluoromethane are included as well. dichlorodifluoromethane (CCl 2 F 2), and trichlorofluorocarbon (CCl 3 F), were given the nicknames CFC-12 and CFC-11, respectively, so that they could be remembered more easily. Industrial preparations include Cl/F exchange of HF with CCl4, in a gas phase reaction at 150 °C with catalysis from aluminum, chromium, nickel or calcium fluoride. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. causes significant depletion of the. It is used as a refrigerant gas, an aerosol propellant, in plastics, and as a leak detecting agent. It belongs to the family of organochlorides and is a chlorofluorocarbon halomethane (CFC).81109: 782. After the Montreal Protocol of 1987, the developed countries banned Freon 12 in 1996, and it was banned in developing countries in 2010. As we enter the "fourth generation" of refrigerants, we consider the evolution of refrigerant molecules, the ever-changing constraints and regulations that have driven the need to consider new molecules, and the advancements in the tools and property models used to identify new molecules and design equipment using them. Unfortunately it is the CFC and it has unusually high potential to cause the Pertanyaan. Material Name: DICHLORODIFLUOROMETHANE SDS ID: MAT06880 _____ Page 2 of 9 Issue date: 2022-01-04 Revision 8.Iron, which is the chief constituent of Earth's core, is the most abundant element in Earth as a whole (about 35 percent) and is relatively plentiful in the Sun and other stars. It can asphyxiate by the displacement of air. In: Documentation of the threshold limit values and biological exposure indices. Steps of drawing lewis structure of CCl 2 F 2 Dichlorodifluoromethane and the saturated fluorocarbons appear to be completely nontoxic., use as a solvent, catalyst, or stabilizer) where the controlled substance is not consumed in the reaction, but is removed or recycled back into the process and where no more than trace The DICHLORODIFLUOROMETHANE molecule consists of 1 Carbon atom(s), 2 Fluorine atom(s), and 2 Chlorine atom(s) - a total of 5 atom(s). Individual CFC molecules are labeled with a unique numbering system. Copy.8: 290.072-37. The Ban on R-12 Refrigerant. Acute (short-term) exposure to dichlorodifluoromethane can cause dizziness, lightheadedness, and trouble with concentration.Thus, Freons are types of chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and related compounds.. The molecule has a tetrahedral shape due to the presence of four electron groups around the central carbon atom. The most prominent reason behind this was that Freon 12 is a significant contributor to ozone layer depletion. Another technique for naming CFCs has been described in detail in the Journal of Chemical Education [] and is called " "." Midgely would receive the Society of Chemical Industry's Perkin Medal for this research in 1937; in 1941, he was awarded the Priestley Medal, the American Chemical Society's highest award, for his contributions to chemistry. Senyawa diklorodifluorometana, CCl 2 F 2 banyak dipakai sebagai aerosol propelan atau pendingan pada pengatur temperatur ruangan (AC), dan bersifat inert (sukar bereaksi). A refrigerant is a working fluid used in the refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again.It was commonly used as a propellant and refrigerant.3 J/mol*K. In order to draw the lewis structure of CCl2F2, first of all you have to find the total number of valence electrons present in the CCl2F2 molecule. Occurrence, uses, and properties. CAS Registry Number: … C p,liquid (J/mol*K) Temperature (K) Reference Comment; 126. U075. ODS. Global Temperature Trend Global temperature trend year 1880 - 2015. h ν + O 2 → 2 O.It was formerly widely used in fire extinguishers, as a precursor to refrigerants Trichlorofluoromethane has been widely used as refrigerant and propellant and is known as Freon 11. IRIS Summary (PDF) (7 pp, 90 K) Key IRIS. 1 m2/s = 104 St = 106 cSt = 10. Chlorofluorocarbons ( CFCs) and hydrochlorofluorocarbons ( HCFCs) are fully or partly halogenated hydrocarbons that contain carbon (C), hydrogen (H), chlorine (Cl), and fluorine (F), produced as volatile derivatives of methane, ethane, and propane . It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride: [4] CHCl 3 + HF → CHCl 2 F + HCl.914. These included trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12), 1,1,2 Chlorofluorocarbons (CFCs) are haloalkane molecules where all the hydrogen atoms have been replaced by chlorine and fluorine atoms. 420-422. Formula: CCl 2 F 2. Their chemical inertness, resistance to water and oxidation, and stability at both high and low temperatures have led to a wide range of commercial applications, from lubricating greases to electrical-wire gold (Au), chemical element, a dense lustrous yellow precious metal of Group 11 (Ib), Period 6, of the periodic table of the elements.It is a man-made substance used primarily as a refrigerant. stratospheric ozone layer.enahtem oruolfidorolhcid rof alumrof lacimehc a si 2f2lcc . Based on the levels detected in The DICHLORODIFLUOROMETHANE molecule contains a total of 4 bond (s). Ozone is naturally formed in the atmosphere. CFCs under commercial uses as refrigerants and blowing agents include trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12), 1,1,2-trichloro-1,2,2 Dichlorodifluoromethane, CF 2 Cl 2 (commonly known as CFC-12), is an example of a refrigerant CFC. Cp at 230 K is 106. It can also be slit or spun into synthetic fibres or modified Ozone Depletion Potential. Copy Sheet of paper on top of another sheet. Molecular weight: 120. Do not eat, drink or smoke when using this product. This is a Mixed question/It is worth 2 points/You have unlimited attempts/There is no atte 03 Question (2 points) Draw the Lewis structure of dichlorodifluoromethane (CCl2F2) and then determine its molecular shape. The time required to achieve methane production of 20% volume in the headspace was 15 days (3).6391 ni )3 1CFC ,enahtemoroulforolhcirt( 11-CFC yb dewollof 1391 ni nageb )2 1C 2 FC ,enahtemoroulfidorolhcid( 21-CFC fo noitcudorP . Colorless gas with an ether-like odor at extremely high concentrations. The ODP of a compound as normally defined is the ratio of the global loss of ozone (i. Average mass 120. Dichlorodifluoromethane, CCl2F2, one of the chlorofluo- rocarbon refrigerants responsible for destroying part of the Earth's ozone layer, has Pvap = 40. Chlorofluorocarbons (CFCs) cause significantly stratospheric ozone depletion and global warming relating to the greenhouse effect. Dichlorodifluoromethane Properties - Imperial Units.914. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. Chemically, CFCs are a part of a group of compounds called halocarbons (carbon- and halogen-containing compounds). Dichloromethane (CH2Cl2) is an unregulated ozone depleting substance whose emissions have strongly increased in recent years. The molecular weight of DICHLORODIFLUOROMETHANE is determined by the sum of the atomic weights of each constituent element multiplied by the number of atoms, which is calculated to be: Sometimes some other bodies are found like. In the CCl 2 F 2 Lewis structure, there are four single bonds around the carbon atom, with two chlorine atoms and two fluorine atoms attached to it, and on each chlorine and fluorine atom, there are three lone pairs. Energi ikatan karbon-fluor besar B. Other articles where dichlorodifluoromethane is discussed: chlorofluorocarbon: …compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. Dichlorofluoromethane was detected, but not quantified, in the expired air of a nonsmoking population of 62 males and females, suburban and urban residents (2). Chemsrc provides Dichlorodifluoromethane(CAS#:75-71-8) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc.914. on further uses. Unfortunately it is the … Pertanyaan. silicone, any of a diverse class of fluids, resins, or elastomers based on polymerized siloxanes, substances whose molecules consist of chains made of alternating silicon and oxygen atoms. Values. Di antara pernyataan berikut yang benar mengenai senyawa inert tersebut adalah. 3-dimensional (3D) chemical structure image of … dichlorodifluoromethane (CCl 2 F 2), and trichlorofluorocarbon (CCl 3 F), were given the nicknames CFC-12 and CFC-11, respectively, so that they could be remembered more easily. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. It is an alkane derivative. Shipped as a liquid confined under its own vapor pressure. They are well suited for these and other applications because they are nontoxic and nonflammable and can be readily converted from a liquid to a gas and vice versa. Satu buah molekul CFC memiliki masa hidup 50 hingga 100 tahun dalam atmosfer sebelum dihapuskan. In CFCs, all hydrogens are replaced. dichlorodifluoromethane radical anion 62789-38-2 Chemsrc provides Dichlorodifluoromethane(CAS#:75-71-8) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc.14 and 0. 75-71-8. The revelation in 1985 of a. Copy Sheet of paper on top of another sheet. Many other CFC compounds have since been produced, most notably CFC-113 (trichlorotrifluoroethane, C2F3Cl3). It is a colorless, faintly ethereal, and sweetish-smelling liquid that boils around room temperature. Molecular weight: 120. Molecular Formula CClF. CFCs are halocarbons C p,liquid (J/mol*K) Temperature (K) Reference Comment; 126. Formula: CCl 2 F 2.6 °C and Pvap = 400 mm Hg at -43. triggers a catalytic chain reaction that. This gas was found to be an adverse effect on the Ozone layer, hence, its manufacture has been banned in some In May 1982, the average atmospheric concentration of chlorodifluoromethane in the lower troposphere measured over Point Barrow, Alaska was 73. Energi ikatan karbon - fluor besar. 1.8: 290. Copy Sheet of paper on top of another sheet. It is the most widely used plastic in the world, being made into products ranging from clear food wrap and shopping bags to detergent bottles and automobile fuel tanks. These substances were toxic and flammable, however, and Properties of saturated liquid Dichlorodifluoromethane - R-12 - CCl2F2 - density, specific heat, kinematic viscosity, thermal conductivity and Prandtl number: Dichlorodifluoromethane R-12 is a chlorofluorocarbon halomethane used as a refrigerant and aerosol spray propellant. Copy Sheet of paper on top of another sheet. CCl 3 F as CFC-11). Soon regulations were put in place to limit the use of R12. CAS Registry Number: 75-71-8.1200]. Dichlorodifluoromethane. Commercially, the most important CFCs were derivatives of methane and ethane. Synthetically, Dichlorodifluoromethane (CF2Cl2) is prepared by the reaction of carbon tetrachloride (CCl4) with hydrogen fluoride gas (H2F2) in the presence of catalyst SbF5 most of the time. Chemically, CFCs are a part of a group of compounds called halocarbons (carbon- and halogen-containing compounds). Shipped as a liquid confined under its own vapor pressure. The units of EESC are in parts per billion by volume (ppbv, volume of equivalent chlorine hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.For the CF2Cl2 structure use the periodic table to find th R-12 came around and provided consumers and businesses with a safe and cheaper alternative refrigerant. Buffington and Fleischer, 1931: Heat capacity measured at 230 K and 290 K using two different methods. In addition to fluorine and carbon, Freons often contain hydrogen, chlorine, or bromine.914. The IUPAC name of carbon tetrachloride is tetrachloromethane.snoitartnecnoc hgih ylemertxe ta rodo ekil-rehte na htiw sag sselroloC . In this article, we will discuss CCl 2 F 2 or CF 2 Cl 2 lewis structure, molecular geometry, polar or nonpolar, its hybridization, etc. Regarding their health effects, CFCs can cause asphyxiation and cardiac C p,liquid (J/mol*K) Temperature (K) Reference Comment; 126. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. drastic reduction in ozone during the Antarctic spring., integrated over latitude, altitude, and time) from that compound at steady state per unit mass emitted relative to the loss of ozone due to emission of unit mass of a reference compound, usually taken as CFC-11 (CFCl3) (Wuebbles, 1983; Dichlorodifluoromethane should be stored in a cool, dry, well-ventilated area in tightly sealed containers that are labeled in accordance with OSHA's Hazard Communication Standard [29 CFR 1910. What is the normal boiling point of CCl2F2 in °C? Dichlorodifluoromethane: 75-71-8: 5000 pounds: 313: U075 "X" indicates that this is a second name for an EPCRA section 313 chemical already included on this consolidated list. CFCs under commercial uses as refrigerants and blowing agents include trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12), 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113), 1,2-dichlorotetrafluoroethane (CFC-114), and chloropentafluoroethane (CFC-115). In compliance with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 … See more Description Dichlorodifluoromethane appears as a colorless gas having a faint ethereal odor. It is a colorless, nonflammable gas that smells like ether in high concentrations. We clearly see the four absorption zones of Freon at 920, 1,050, 1,140 and 1,190 cm − 1. The primary cause of the fall is a decrease in pulmonary blood Description.

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The ozone layer is created when ultraviolet rays react with oxygen molecules (O 2) to create ozone (O 3) and atomic oxygen (O). Thus, the ODP of CFC-11 is defined to be 1.8° Celsius or -21. Dichlorodifluoromethane - R-12 - is a chlorofluorocarbon halomethane used as a refrigerant and aerosol spray propellant. Step #1: Calculate the total number of valence electrons. Dichlorodifluoromethane (R-12), usually sold under the brand name Freon-12, is a chlorofluorocarbon halomethane, commonly known as CFC, used as a refrigerant and aerosol spray propellant until its manufacture was discontinued and banned of new production in the United States and many countries in 1994, due to concerns about damage to the ozone layer. Sponsored Links. Molecular weight: 120. Monoisotopic mass 119.17(b) shows the radiative brightness temperature depending on the Refrigerant R12 or Freon 12 is said to be the most widely used of all the refrigerants being used for different applications. Copy Sheet of paper on top of another sheet.062 fg/hr (1). Response Get medical advice/attention if you feel unwell. Other EPA. Dichlorofluoromethane was detected, but not quantified, in the expired air of a nonsmoking population of 62 males and females, suburban and urban residents (2). ODS include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), halons, methyl bromide, carbon tetrachloride, hydrobromofluorocarbons, chlorobromomethane, and methyl chloroform. As a group, they are unreactive, stable, and poorly soluble in water.0 mm Hg at -81. Another formerly common CFC is trichlorofluoromethane, CFCl 3 (CFC-11), which boils at 24°C and was originally employed as the propellant in over half of all aerosol cans used worldwide. Dichlorodifluoromethane harms the ozone layer, which protects the earth from the sun's ultraviolet radiation.0 ng/cu m) (1). Energi ikatan karbon - fluor besar A DuPont R-134a refrigerant. A. Tsai, in Encyclopedia of Toxicology (Third Edition), 2014 Abstract. Figure 4.)iskaereb rakus( treni tafisreb nad ,)CA( nagnaur rutarepmet rutagnep adap nignidnep uata naleporp losorea iagabes iakapid kaynab 2F2lCC ,anatemoroulfidorolkid awayneS .914. (Valence electrons are the number of electrons present in the outermost shell of an atom). hydrochlorofluorocarbons. For example, the CFC number of 11 indicates the number of atoms of carbon, hydrogen, fluorine, and chlorine (e. Chemistry questions and answers. Information. Here, the authors show that rising emissions of dichloromethane in Dichlorodifluoromethane is a colorless, non-flammable gas that can affect you when breathed in. Chlorofluorocarbons. Cincinnati, OH: American Conference of Governmental Industrial Hygienists, pp.] Page last reviewed: December 4, 2014. 6th ed. The higher the values of EESC the more chlorine is available for the destruction of ozone. CF 2 Cl 2 is called Dichlorodifluoromethane this molecule is also represented by Freon-12 or R-12 which has a CCl 2 F 2 chemical formula.Tetrafluoromethane is a useful refrigerant but also a potent greenhouse gas. Senyawa diklorodifluorometana, CCI2F2 banyak dipakai sebagai aerosol propela pendingin pada pengatur temperatur ruangan (AC), dan bersifat inert (sukar bereaksi) Di antara pernyataan berikut yang benar mengenai senyawa inert tersebut adalah A. Mereka juga dikenal dengan nama merek DuPont Freon. Dichlorodifluoromethane. Here, the given molecule is CCl2F2. Ikatan karbon- fluor polaritasnya rendah C Karbon memiliki keelektronegatifan tinggi D. DICHLORODIFLUOROMETHANE†. The fact that it was useful in so many ways was outweighed by its harm to the planet. Molecular weight: 120. Some of these compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. May also indicate that the same chemical with the same CAS number appears on another list with a different chemical name.773: Stull, 1947: Coefficents calculated by NIST from author's data.The name Freon is a trademark registered by E. Containers of dichlorodifluoromethane should be protected from physical damage and ignition sources, and should be stored separately from 1,1,1,2-Tetrafluoroethane (also known as norflurane (), R-134a, Klea 134a, Freon 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, HFA-134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a lower 100-year global warming Chemistry. Copy. Dichlorodifluoromethane Properties - Imperial Units. CFCs are nonflammable, noncorrosive, nonexplosive, very low in toxicity, and have physical properties conducive to Freon, (trademark), any of several simple fluorinated aliphatic organic compounds that are used in commerce and industry. Molecular weight: 120. It can asphyxiate by displacement of air. This property of plasticity, often found in combination with other special properties such as low density, low electrical conductivity, transparency, and toughness, allows plastics to be made into a great variety of Radiocarbon-labeled trichlorofluoromethane (FC-11; (14)CC13F) and dichlorodifluormethane (FC-12; (14)CC12F2) were separately inhaled by a female subject and a male subject. h ν + O 2 → 2 O. Up to 10000 ppm: (APF = 10) Any supplied-air respirator. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. It is a colorless and odorless gas. dichlorodifluoromethane (CCl 2 F 2), and trichlorofluorocarbon (CCl 3 F), were given the nicknames CFC-12 and CFC-11, respectively, so that they could be remembered more easily. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. They are well suited for these and other applications because they are nontoxic and nonflammable and can be readily converted from a liquid to a gas and vice … Dichlorodifluoromethane (CFC-12) is a chemical compound primarily used as a refrigerant.7 - 243. Notice: Concentration information is not available for Temperature (K) A B C Reference Comment; 154. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5. Copy Sheet of paper on top of another sheet. The molecule has a tetrahedral shape due to the presence of four electron groups around the central carbon atom. Exposure to high concentrations of the gas can cause the heart to beat irregularly or to stop.When released into the environment, CFC-13 has a high ozone depletion potential, and long atmospheric lifetime. Although dichlorodifluoromethane is no longer made in the United States, existing stocks are allowed to be Dichlorodifluoromethane and Drinking Water Summary Dichlorodifluoromethane (DCDFM) is a human-made chemical, commonly known as Freon-12, that has been phased out of common use because it damages the ozone layer in the atmosphere.9 °C. But, its usage is reduced drastically due to its property of depletion of ozone layer.01 to 1. It has been widely used in air conditioning, refrigeration, and aerosol propellants. Copy Sheet of paper on top of another sheet. The Lewis structure of CCl2F2 shows two carbon atoms bonded to two chlorine atoms and two fluorine atoms. The DICHLORODIFLUOROMETHANE molecule contains a total of 4 bond (s).7 - 243.64° Fahrenheit. There are 4 non-H bond (s). Perwakilan kelompok senyawa ini yang paling umum adalah diklorodifluorometana (R-12 atau Freon-12). A chemical formula of DICHLORODIFLUOROMETHANE can therefore be written as: CCl2F2. Dichlorodifluoromethane is a colorless gas or liquid under pressure.062 fg/hr (1). CFCs are halocarbons Dichlorofluoromethane was found in the expired air of 2 of 8 male volunteers; the amounts exhaled in these two subjects were 0. CAS Registry Number: 75-71-8. Senyawa fluor Trichlorofluoromethane, also called freon-11, CFC-11, or R-11, is a chlorofluorocarbon (CFC). There are 1 Carbon atom (s), 2 Fluorine atom (s), and 2 Chlorine atom (s). Ozone (O 3) in the upper atmosphere acts as a chemical sunscreen, it absorbs a lot of the ultraviolet (UV) radiation which can cause sunburn and even skin cancer. Some of these compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. A step-by-step explanation of how to draw the CF2Cl2 Lewis Dot Structure (Dichlorodifluoromethane). Molecular weight: 120. Samples such as dichlorodifluoromethane, chlorotrifluoromethane, and ethanol are separated by a conventional gas chromatograph column (Carbowax 20M) and are excited at the P32 line of the carbon dioxide laser (933cm−1). of chlorofluorocarbons. 661 Kenyon Avenue Bridgeton, New Jersey 08302 FOR MORE INFORMATION CALL: IN CASE OF EMERGENCY CALL: (Monday-Friday, 8:00am-5:00pm) CHEMTREC: 1-800-424-9300 Equivalent effective stratospheric chlorine (EESC) is a convenient parameter we use to estimate the amount of stratospheric ozone depletion due to these compounds.erusserp ropav nwo sti rednu diuqil a sa deppihs si tI . It is a clear light colored and non-toxic liquid. The best way to remember the system is Author: Aaron Vorderstrasse School: Western Oregon University Location: Monmouth, Oregon Abstract: Dichlorodifluoromethane is an inert gas that has a long history acting as a refrigerant, allowing us to stay cool in the summer, and as a spray propellant for important consumer substances. For each ODS, this page provides the compound's The first compound they developed was dichlorodifluoromethane, CCl 2 F 2, which they dubbed "Freon. It has a very high bond strength due to the Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl 2 F. R-12 Dichlorodifluoromethane - Properties Dichlorodifluoromethane. Manufacturing was discontinued in 1995 due to concerns about damage to the ozone layer. IUPAC Standard InChI: InChI=1S/CCl2F2/c2-1 (3,4)5.764 ft2/s= 38750 ft2/h. Acute (short-term) exposure to dichlorodifluoromethane can cause dizziness, lightheadedness, and trouble with concentration. ) under the Montreal Protocol. This page provides information on compounds recognized as ozone-depleting substances ( ODS ODS A compound that contributes to stratospheric ozone depletion. odour. The Lewis structure of CCl2F2 shows two carbon atoms bonded to two chlorine atoms and two fluorine atoms. Buffington and Fleischer, 1931: Heat capacity measured at 230 K and 290 K using two different methods. In compliance with the Montreal Protocol, its manufacture was banned in developed countries in 1996, and in developing countries in 2010 out of concerns about its damaging effect on the ozone layer. In compliance with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 countries) in 1996, and in developing countries Dichlorodifluoromethane, present at 225 ug/L exhibited a degradation rate constant of .9 days when incubated anaerobically in fresh organic waste collected from Danish households. During the late 1800s and early 1900s, ammonia (NH 3) and sulfur dioxide (SO 2) were the gases most commonly used in refrigeration systems.17(b) shows the radiative brightness … Refrigerant R12 or Freon 12 is said to be the most widely used of all the refrigerants being used for different applications.] Page last reviewed: December 4, 2014.029/day, corresponding to a half-life of 23. Formula: CCl 2 F 2. Images of the chemical structure of DICHLORODIFLUOROMETHANE are given below: 2-dimensional (2D) chemical structure image of DICHLORODIFLUOROMETHANE. The chemical name of refrigerant R12 is dichlorodifluoromethane and its chemical formula is CCl2F2. Carbon tetrachloride is an organic compound with a chemical formula CCl4 CC l 4. dichlorodifluoromethane (CCl 2 F 2), and trichlorofluorocarbon (CCl 3 F), were given the nicknames CFC-12 and CFC-11, respectively, so that they could be remembered more easily.These applications were phased out under the Montreal Protocol in developed countries in 2020 due to the compound's ozone depletion potential (ODP) and high global warming potential (GWP CFCs are classified as halocarbons, a class of compounds that contain atoms of carbon and halogen atoms.2, and methyl chloroform's ODP is 0. Dichlorodifluoromethane. * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA … Dichlorodifluoromethane. It belongs to the class of chlorofluorocarbon (CFC) compounds. Cp at 230 K is 106. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N.T. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket. Pada tahun 1970-an, zat-zat kimia seperti chlorofluorocarbon Dichlorodifluoromethane (CCl 2 F 2) Dichlorodifluoromethane (CCl 2 F 2) was used as a refrigerant in air refrigeration purposes. Samples such as dichlorodifluoromethane, chlorotrifluoromethane, and ethanol are separated by a conventional gas chromatograph column (Carbowax 20M) and are excited at the P32 line of the carbon dioxide laser (933cm−1).0.914. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. Diklorometana dapat dikenali dari aromanya yang manis, tetapi jangan tertipu, karena DCM juga memiliki sisi gelap yang beracun. From: Encyclopedia of Analytical Science (Second Edition), 2005. Dichlorodifluoromethane. Other articles where dichlorodifluoromethane is discussed: chlorofluorocarbon: …compounds, especially trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12), found use as aerosol-spray propellants, solvents, and foam-blowing agents. Refrigerants are heavily regulated due to their toxicity, flammability and the contribution of CFC and HCFC Tetrafluoromethane, also known as carbon tetrafluoride or R-14, is the simplest perfluorocarbon (C F 4). Buffington and Fleischer, 1931: Heat capacity measured at 230 K and 290 K using two different … dichlorodifluoromethane chemical compound Also known as: CFC-12, F-12, Freon 12 Learn about this topic in these articles: description and use In chlorofluorocarbon … Dichlorodifluoromethane. If you compare this to some of the other refrigerants out there such as R-22 (-40. CAS Registry Number: 75-71-8. In the CCl 2 F 2 Lewis structure, there are four single bonds around the carbon atom, with two chlorine atoms and two fluorine atoms attached to it, and on each chlorine and fluorine atom, there are three lone pairs.e. Senyawa diklorodifluorometana, CCI2F2 banyak dipakai sebagai aerosol propela pendingin pada pengatur temperatur ruangan (AC), dan bersifat inert (sukar bereaksi) Di antara pernyataan berikut yang benar mengenai senyawa inert tersebut adalah A. CFC-12 is a potent greenhouse gas and has been phased out due to its harmful effects on the ozone layer. OTHER NAME: Dichlorodifluoromethane USE: Refrigerant Gas DISTRIBUTOR: National Refrigerants, Inc. CFCs are halocarbons The ozone layer is created when ultraviolet rays react with oxygen molecules (O 2) to create ozone (O 3) and atomic oxygen (O). [5] CFC-11 is a Class 1 ozone-depleting substance which damages Earth's protective stratospheric ozone layer. dichlorodifluoromethane (CC12F2) oxygen, 02, or by stratospheric.914.Dichlorodifluoromethane ( R-12) is a colorless gas usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant.2 parts per trillion (259. The concentration of chlorodifluoromethane present in the ambient atmosphere was reported to be 88 pmol/mol in 1990 (2). R-12 is also commonly called Freon This page provides information on compounds recognized as ozone-depleting substances (.764 ft2/s= 38750 ft2/h. (APF = 50) Any self-contained breathing apparatus with a full facepiece. Exposure to high concentrations of the gas can cause the heart to beat irregularly or to stop. It is commercially sold in the market under the name of Freon-12 and Chlorofluorocarbon halomethane (CFC). Content source: National Institute for Occupational Safety and Health NIOSH Publications & Products Dichlorodifluoromethane is a colorless gas usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane used as a refrigerant and aerosol spray propellant. Temperature (K) A B C Reference Comment; 154. Copy Sheet of paper on top of another sheet. Emergency or planned entry into unknown concentrations or IDLH C p,liquid (J/mol*K) Temperature (K) Reference Comment; 126. IUPAC Standard InChIKey: PXBRQCKWGAHEHS-UHFFFAOYSA-N. 3-dimensional (3D) chemical structure image of DICHLORODIFLUOROMETHANE.013 bar at boiling point) : 1486 kg/m3 (250 K : 1468 kg/m3) (300 K : 1304 kg/m3) Dichlorodifluoromethane. Formula: CCl 2 F 2.3 J/mol*K. Copy Sheet of paper on top of another sheet. Total expired gases were collected during fluorocarbon Dichlorodifluoromethane is a colorless, non-flammable gas that can affect you when breathed in. Figure 1 is a 1960 The ODP is the ratio of the impact on ozone of a chemical compared to the impact of a similar mass of CFC-11.0 Print date: 2022-01-04 Wash thoroughly after handling. It has been widely used in air conditioning, refrigeration, and aerosol propellants. [5] CFC-11 is a Class 1 ozone-depleting substance which damages Earth's protective stratospheric ozone layer.