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The most commonly encountered HCFCs are -22, -123, -124, -141b
and -142b (highlighted in bold below).
To see a full list of trade names of products containing HCFCs,
click
here.
To see a list of refrigerant blends that contain HCFCs, click
here.
|
Substance
|
ASHRAE
Code
|
Chemical name |
Chemical formula
|
|
|
Lifetime
(years)
|
| HCFC‑21** |
R-21 |
Dichlorofluoromethane |
CHFCl2 |
0.04
|
151
|
1.7
|
| HCFC‑22** |
R-22 |
Monochlorodifluoromethane |
CHF2Cl |
0.055
|
1810
|
12.0
|
| HCFC‑31 |
R-31 |
Monochlorofluoromethane |
CH2FCl |
0.02
|
|
|
| HCFC‑121 |
R-121 |
Tetrachlorofluoroethane |
C2HFCl4 |
0.01-0.04
|
|
|
| HCFC‑122 |
R-122 |
Trichlorodifluoroethane |
C2HF2Cl3 |
0.02-0.08
|
|
|
| HCFC‑123** |
R-123 |
Dichlorotrifluoroethane |
C2HF3Cl2 |
0.02-0.06
|
77
|
1.3
|
| HCFC‑124** |
R-124 |
Monochlorotetrafluoroethane |
C2HF4Cl |
0.02-0.04
|
609
|
5.8
|
| HCFC‑131 |
R-131 |
Trichlorofluoroethane
|
C2H2FCl3 |
0.007-0.05
|
|
|
| HCFC‑132 |
R-132 |
Dichlorodifluoroethane |
C2H2F2Cl2 |
0.008-0.05
|
|
|
| HCFC‑133 |
R-133 |
Chlorotrifluoroethane |
C2H2F3Cl |
0.02-0.06
|
|
|
| HCFC‑141 |
R-141 |
Dichlorofluoroethane |
C2H3FCl2 |
0.005-0.07
|
|
|
| HCFC‑141b** |
R-141b |
Dichlorofluoroethane |
CH3CFCl2 |
0.11
|
725
|
9.3
|
| HCFC‑142 |
R-142 |
Chlorodifluoroethane |
C2H3F2Cl |
0.008-0.07
|
|
|
| HCFC‑142b** |
R-142b |
Chlorodifluoroethane |
CH3CF2Cl |
0.065
|
2310
|
17.9
|
| HCFC‑151 |
R-151 |
Chlorofluoroethane |
C2H4FCl |
0.003-0.005
|
|
|
| HCFC‑221 |
R-221 |
Hexachlorofluoropropane |
C3HFCl6 |
0.015-0.07
|
|
|
| HCFC‑222 |
R-222 |
Pentachlorodifluoropropane |
C3HF2Cl5 |
0.01-0.09
|
|
|
| HCFC‑223 |
R-223 |
Tetrachlorotrifluoropropane |
C3HF3Cl4 |
0.01-0.08
|
|
|
| HCFC‑224 |
R-224 |
Trichlorotetrafluoropropane |
C3HF4Cl3 |
0.01-0.09
|
|
|
| HCFC‑225 |
R-225 |
Dichloropentafluoropropane |
C3HF5Cl2 |
0.02-0.07
|
|
|
| HCFC‑225ca** |
R-225ca |
Dichloropentafluoropropane |
CF3CF2CHCl2 |
0.025
|
122
|
1.9
|
| HCFC‑225cb** |
R-225cb |
Dichloropentafluoropropane |
CF2ClCF2CHClF |
0.033
|
595
|
5.8
|
| HCFC‑226 |
R-226 |
Monochlorohexafluoropropane |
C3HF6Cl |
0.02-0.10
|
|
|
| HCFC‑231 |
R-231 |
Pentachlorofluoropropane |
C3H2FCl5 |
0.05-0.09
|
|
|
| HCFC‑232 |
R-232 |
Tetrachlorodifluoropropane |
C3H2F2Cl4 |
0.008-0.10
|
|
|
| HCFC‑233 |
R-233 |
Trichlorotrifluoropropane |
C3H2F3Cl3 |
0.007-0.23
|
|
|
| HCFC‑234 |
R-234 |
Dichlorotetrafluoropropane |
C3H2F4Cl2 |
0.01-0.28
|
|
|
| HCFC‑235 |
R-235 |
Monochloropentafluoropropane |
C3H2F5Cl |
0.03-0.52
|
|
|
| HCFC‑241 |
R-241 |
Tetrachlorofluoropropane |
C3H3FCl4 |
0.004-0.09
|
|
|
| HCFC‑242 |
R-242 |
Trichlorodifluoropropane |
C3H3F2Cl3 |
0.005-0.13
|
|
|
| HCFC‑243 |
R-243 |
Dichlorotrifluoropropane |
C3H3F3Cl2 |
0.007-0.12
|
|
|
| HCFC‑244 |
R-244 |
Monochlorotetrafluoropropane |
C3H3F4Cl |
0.009-0.14
|
|
|
| HCFC‑251 |
R-251 |
Monochlorotetrafluoropropane |
C3H4FCl3 |
0.001-0.01
|
|
|
| HCFC‑252 |
R-252 |
Dichlorodifluoropropane |
C3H4F2Cl2 |
0.005-0.04
|
|
|
| HCFC‑253 |
R-253 |
Monochlorotrifluoropropane |
C3H4F3Cl |
0.003-0.03
|
|
|
| HCFC‑261 |
R-261 |
Dichlorofluoropropane |
C3H5FCl2 |
0.002-0.02
|
|
|
| HCFC‑262 |
R-262 |
Monochlorodifluoropropane |
C3H5F2Cl |
0.002-0.02
|
|
|
| HCFC‑271 |
R-271 |
Monochlorofluoropropane |
C3H6FCl |
0.001-0.03
|
|
|
*
Where a range of ODPs is indicated, the highest value in that range
shall be used for the purposes of the Protocol. The ODPs listed
as a single value have been determined from calculations based on
laboratory measurements. Those listed as a range are based on estimates
and are less certain. The range pertains to an isomeric group. The
upper value is the estimate of the ODP of the isomer with the highest
ODP, and the lower value is the estimate of the ODP of the isomer
with the lowest ODP.
**
Identifies the most commercially viable substances with ODP values
listed against them to be used for the purposes of the Protocol.
Source: ODP values - Handbook
for the Montreal Protocol on Substances that Deplete the Ozone Layer
Seventh edition (2006), Ozone Secretariat, " Annex C, Controlled
Substances". GWP values, WMO
(World Meteorological Organization), Scientific Assessment of Ozone
Depletion: 2006, Global Ozone Research and Monitoring Project—Report
No. 50. GWP values represent direct radiative forcing using
a 100 year time horizon. Atmospheric lifetime values, WMO
Scientific Assessment of Ozone Depletion: 2006, Global Ozone Research
and Monitoring Project—Report No. 50.
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