Jump to main content.


Class II Ozone-depleting Substances

Chemical Name Lifetime, in years ODP2 (WMO 2011) ODP1 (Montreal Protocol) GWP (AR5) CAS Number
HCFC-21 (CHFCl2) Dichlorofluoromethane 1.7 0.04 151 75-43-4
HCFC-22 (CHF2Cl) Monochlorodifluoromethane 11.9 0.04 0.055 1810 75-45-6
HCFC-31 (CH2FCl) Monochlorofluoromethane 0.02 593-70-4
HCFC-121 (C2HFCl4) Tetrachlorofluoroethane 0.01-0.04 354-14-3
HCFC-122 (C2HF2Cl3) Trichlorodifluoroethane 0.02-0.08 354-21-2
HCFC-123 (C2HF3Cl2) Dichlorotrifluoroethane 1.3 0.01 0.02 77 306-83-2
HCFC-124 (C2HF4Cl) Monochlorotetrafluoroethane 5.9 0.022 0.022 609 2837-89-0
HCFC-131 (C2H2FCl3) Trichlorofluoroethane 0.007-0.05 359-28-4
HCFC-132b (C2H2F2Cl2) Dichlorodifluoroethane 0.008- 0.05 1649-08-7
HCFC-133a (C2H2F3Cl) Monochlorotrifluoroethane 0.02 - 0.06 75-88-7
HCFC-141b (C2H3FCl2) Dichlorofluoroethane 9.2 0.12 0.11 725 1717-00-6
HCFC-142b (C2H3F2Cl) Monochlorodifluoroethane 17.2 0.06 0.065 2310 75-68-3
HCFC-221 (C3HFCl6) Hexachlorofluoropropane 0.015-0.07 422-26-4
HCFC-222 (C3HF2Cl5) Pentachlorodifluoropropane 0.01-0.09 422-49-1
HCFC-223 (C3HF3Cl4) Tetrachlorotrifluoropropane 0.01-0.08 422-52-6
HCFC-224 (C3HF4Cl3) Trichlorotetrafluoropropane 0.01-0.09 422-54-8
HCFC-225ca (C3HF5Cl2) Dichloropentafluoropropane 1.9 0.02 0.025 122 422-56-0
HCFC-225cb (C3HF5Cl2) Dichloropentafluoropropane 5.9 0.03 0.033 595 507-55-1
HCFC-226 (C3HF6Cl) Monochlorohexafluoropropane 0.02 - 0.1 431-87-8
HCFC-231 (C3H2FCl5) Pentachlorofluoropropane 0.05 - 0.09 421-94-3
HCFC-232 (C3H2F2Cl4) Tetrachlorodifluoropropane 0.008 - 0.1 460-89-9
HCFC-233 (C3H2F3Cl3) Trichlorotrifluoropropane 0.007 - 0.23 7125-84-0
HCFC-234 (C3H2F4Cl2) Dichlorotetrafluoropropane 0.01 - 0.28 425-94-5
HCFC-235 (C3H2F5Cl) Monochloropentafluoropropane 0.03 - 0.52 460-92-4
HCFC-241 (C3H3FCl4) Tetrachlorofluoropropane 0.004 - 0.09 666-27-3
HCFC-242 (C3H3F2Cl3) Trichlorodifluoropropane 0.005 - 0.13 460-63-9
HCFC-243 (C3H3F3Cl2) Dichlorotrifluoropropane 0.007 - 0.12 460-69-5
HCFC-244 (C3H3F4Cl) Monochlorotetrafluoropropane 0.009 - 0.14
HCFC-251 (C3H4FCl3) Monochlorotetrafluoropropane 0.001 - 0.01 421-41-0
HCFC-252 (C3H4F2Cl2) Dichlorodifluoropropane 0.005 - 0.04 819-00-1
HCFC-253 (C3H4F3Cl) Monochlorotrifluoropropane 0.003 - 0.03 460-35-5
HCFC-261 (C3H5FCl2) Dichlorofluoropropane 0.002 - 0.02 420-97-3
HCFC-262 (C3H5F2Cl) Monochlorodifluoropropane 0.002 - 0.02 421-02-03
HCFC-271 (C3H6FCl) Monochlorofluoropropane 0.001 - 0.03 430-55-7
Why are there multiple values given for the ODPs and GWPs?
The numbers in the “ODP1” column are from the Montreal Protocol. Some numbers have been updated as per amendments to the protocol. Data in the “ODP2” column come from WMO’s Scientific Assessment of Ozone Depletion: 2010. ODP values listed are semi-empirical and can be found in Table 5-1 of the document. All GWP values represent global warming potential over a 100-year time horizon. The numbers are from the IPCC Fourth Assessment Report: Climate Change 2007. The values listed are for direct radiative forcing and can be found in Table 2.14 of the document.

References


Local Navigation



Jump to main content.