List of refrigerants explained

This is a list of refrigerants, sorted by their ASHRAE-designated numbers, commonly known as R numbers. Many modern refrigerants are human-made halogenated gases, especially fluorinated gases and chlorinated gases, that are frequently referred to as Freon (a registered trademark of Chemours).

Freons are responsible for the formation of the ozone hole. The Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol are international agreements that oblige signatory countries to limit the emission of ozone-depleting gases.

Numbering scheme

According to ASHRAE standard 34, the R-number of a chemical refrigerant is assigned systematically according to its molecular structure and has between two and four digits. If there are carbon-carbon multiple bonds, there are four digits in all: the number of these bonds is the first digit and the number of carbon atoms minus one (C-1) is next. If there is more than one carbon atom but no multiple bonds, there are three digits, and the number of carbon atoms minus one is the first digit. If there is only one carbon atom, then there are only two digits. The last two digits are always the number of hydrogen atoms plus one (H+1), followed by the number of fluorine atoms. Any other atoms attached to the carbons are assumed to be chlorine atoms. For example, R-22 has one carbon atom, one hydrogen atom (2−1 = 1), two fluorine atoms, and one chlorine atom (4−2−1 = 1), so it is chlorodifluoromethane, while R-134 has two carbon atoms (2−1 = 1), two hydrogen atoms (3−1 = 2), four fluorine atoms, and no chlorine atoms (6−2−4 = 0), so it is one of the tetrafluoroethanes. This basic scheme is modified as follows:

There are separate numbering schemes for zeotropic and azeotropic blends, organic chemicals which don't fit into the scheme above, and inorganic chemicals:

Columns

The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties):

Since over 100,000 refrigerant blends are possible,[1] this list should only have notable refrigerants and refrigerant blends.

List

TypeASHRAE
number		IUPAC chemical nameMolecular
formula		CAS no/
blend
name		Atmospheric
lifetime
(years)		Semi-
empirical
ODP
(R-11 = 1)		Net
GWP
100-yr
(R-744 = 1)		OEL/PEL
ppm (v/v) &
ASHRAE 34
safety group		RCL/IDLH
(ppm v/v, followed by g/m3)		Molecular
mass
u		Boiling, or
bubble/dew
/azeotropic
point(s) °C		Critical
temp.
°C		Critical
pressure,
absolute
kPa
PCCR-Carbon tetrachloride (Tetrachloromethane)CCl456-23-5? B1
CFCR-TrichlorofluoromethaneCCl3F75-69-4 A1
CFCR-DichlorodifluoromethaneCCl2F275-71-8 A1
HR-B1BromochlorodifluoromethaneCBrClF2 or CF2ClBr353-59-3[2]
HR-B2DibromodifluoromethaneCBr2F275-61-6
CFCR-ChlorotrifluoromethaneCClF375-72-9 A1??
HR-B1BromotrifluoromethaneCBrF3 or CF3Br75-63-8 A1
HR-I1TrifluoroiodomethaneCF3I2314-97-8 A1
PFCR-TetrafluoromethaneCF475-73-0 A1
HCCR-Chloroform (Trichloromethane)CHCl367-66-3
HCFCR-DichlorofluoromethaneCHFCl275-43-4? B1
HCFCR-ChlorodifluoromethaneCHClF275-45-6[3] A1
HR-B1BromodifluoromethaneCHBrF2 or CHF2Br1511-62-2
HFCR-Trifluoromethane (Fluoroform)CHF375-46-7 A1
HCCR-Dichloromethane (Methylene chloride)CH2Cl275-09-2? B2
HCFCR-ChlorofluoromethaneCH2FCl593-70-4? B2???
HFCR-DifluoromethaneCH2F275-10-5 A2L
HCCR-ChloromethaneCH3Cl74-87-3? B2
HFCR-FluoromethaneCH3F593-53-3
HCR-MethaneCH474-82-8 ± 3<0(smog) A3??±2[4]
PCCR-HexachloroethaneC2Cl667-72-1
CFCR-PentachlorofluoroethaneC2FCl5354-56-3
CFCR-1,1,2,2-Tetrachloro-1,2-difluoroethaneC2F2Cl476-12-0
CFCR-a1,1,1,2-Tetrachloro-2,2-difluoroethaneC2F2Cl476-11-9
CFCR-1,1,2-Trichloro-1,2,2-trifluoroethaneC2F3Cl376-13-1 A1
CFCR-a1,1,1-Trichloro-2,2,2-trifluoroethaneC2F3Cl3354-58-5
CFCR-1,2-DichlorotetrafluoroethaneC2F4Cl276-14-2 A1
CFCR-a1,1-DichlorotetrafluoroethaneC2F4Cl2374-07-2
HR-B2DibromotetrafluoroethaneC2F4Br2 or CF2BrCF2Br124-73-2
CFCR-ChloropentafluoroethaneC2F5Cl76-15-3 A1
PFCR-HexafluoroethaneC2F676-16-4 A1
HCCR-PentachloroethaneC2HCl576-01-7
HCFCR-1,1,2,2-Tetrachloro-1-fluoroethaneC2HFCl4354-14-30.01–0.04
HCFCR-a1,1,1,2-Tetrachloro-2-fluoroethaneC2HFCl4354-11-00.01–0.04
HCFCR-1,1,2-Trichloro-2,2-difluoroethaneC2HF2Cl3354-21-20.02–0.08
HCFCR-a1,1,2-Trichloro-1,2-difluoroethaneC2HF2Cl3354-15-40.02–0.08
HCFCR-b1,1,1-Trichloro-2,2-difluoroethaneC2HF2Cl3354-12-10.02–0.08
HCFCR-2,2-Dichloro-1,1,1-trifluoroethaneC2HF3Cl2306-83-2 B1
HCFCR-a1,2-Dichloro-1,1,2-trifluoroethaneC2HF3Cl2354-23-4???
HCFCR-b1,1-Dichloro-1,2,2-trifluoroethaneC2HF3Cl2812-04-4???
HCFCR-1-Chloro-1,2,2,2-tetrafluoroethaneC2HF4Cl2837-89-0 A1
HCFCR-a1-Chloro-1,1,2,2-tetrafluoroethaneC2HF4Cl354-25-6???
HFCR-PentafluoroethaneC2HF5354-33-6 A1
HFCR-E125Pentafluorodimethyl etherC2F5OC2F53822-68-2
HCCR-1,1,2,2-TetrachloroethaneC2H2Cl479-34-5
HCCR-a1,1,1,2-TetrachloroethaneC2H2Cl4630-20-6
HCFCR-1,1,2-Trichloro-2-fluoroethaneC2H2FCl3359-28-40.007–0.05
HCFCR-a1,1,2-Trichloro-1-fluoroethaneC2H2FCl3811-95-00.007–0.05
HCFCR-b1,1,1-Trichloro-2-fluoroethaneC2H2FCl32366-36-10.007–0.05
HCFCR-1,2-Dichloro-1,2-difluoroethaneC2H2F2Cl2431-06-10.008–0.05
HCFCR-a1,1-Dichloro-2,2-difluoroethaneC2H2F2Cl2471-43-20.008–0.05
HCFCR-b1,2-Dichloro-1,1-difluoroethaneC2H2F2Cl21649-08-70.008–0.05
HCFCR-c1,1-Dichloro-1,2-difluoroethaneC2H2F2Cl21842-05-30.008–0.05
HR-bB21,2-Dibromo-1,1-difluoroethaneC2H2Br2F275-82-10.2–1.5
HCFCR-1-Chloro-1,2,2-TrifluoroethaneC2H2F3Cl431-07-20.02–0.06
HCFCR-a1-Chloro-2,2,2-TrifluoroethaneC2H2F3Cl75-88-70.02–0.06
HCFCR-b1-Chloro-1,1,2-TrifluoroethaneC2H2F3Cl421-04-50.02–0.06
HFCR-1,1,2,2-TetrafluoroethaneC2H2F4359-35-3
HFCR-a1,1,1,2-TetrafluoroethaneC2H2F4811-97-2 A1
HFCR-E134Bis(difluoromethyl)etherC2H2F4O1691-17-4
HCCR-1,1,2-TrichloroethaneC2H3Cl379-00-5±2.5
HCCR-a1,1,1-Trichloroethane (Methyl chloroform)C2H3Cl3 or CH3CCl371-55-6
HCFCR-1,2-Dichloro-1-fluoroethaneC2H3FCl2430-57-9???
HR-B21,2-Dibromo-1-fluoroethaneC2H3Br2F358-97-40.1–1.7
HCFCR-a1,1-Dichloro-2-fluoroethaneC2H3FCl2430-53-5???
HCFCR-b1,1-Dichloro-1-fluoroethaneC2H3FCl21717-00-6 A2?
HCFCR-a1-Chloro-1,2-difluoroethaneC2H3F2Cl338-64-7???
HCFCR-b1-Chloro-1,1-difluoroethaneC2H3F2Cl75-68-3 A2
HFCR-1,1,2-TrifluoroethaneC2H3F3430-66-0
HFCR-a1,1,1-TrifluoroethaneC2H3F3420-46-2 A2L
HFCR-E143aMethyl trifluoromethyl etherC2H3F3O421-14-7
HCCR-1,2-DichloroethaneC2H4Cl2107-06-2
HCCR-a1,1-DichloroethaneC2H4Cl275-34-3
HCFCR-1-Chloro-2-fluoroethaneC2H4ClF762-50-5
HCFCR-a1-Chloro-1-fluoroethaneC2H4ClF1615-75-4
HFCR-1,2-DifluoroethaneC2H4F2624-72-6
HFCR-a1,1-DifluoroethaneC2H4F275-37-6 A2
HCCR-Chloroethane (ethyl chloride)C2H5Cl75-00-3
HFCR-FluoroethaneC2H5F353-36-6
HCR-EthaneC2H6 or CH3CH374-84-0 days< 0(smog)– A3
HCR-E170Dimethyl etherCH3OCH3115-10-6< 0(smog) A3
CFCR-1,1,1,2,2,3,3-Heptachloro-3-fluoropropaneC3FCl7422-78-6
CFCR-HexachlorodifluoropropaneC3F2Cl6134452-44-1
CFCR-1,1,1,3,3-Pentachloro-2,2,3-trifluoropropaneC3F3Cl52354-06-5
CFCR-1,2,2,3-Tetrachloro-1,1,3,3-tetrafluoropropaneC3F4Cl42268-46-4
CFCR-1,1,1-Trichloro-2,2,3,3,3-pentafluoropropaneC3F5Cl34259-43-2
CFCR-1,2-Dichloro-1,1,2,3,3,3-hexafluoropropaneC3F6Cl2661-97-2
CFCR-ca1,3-Dichloro-1,1,2,2,3,3-hexafluoropropaneC3F6Cl2662-01-1
CFCR-1-Chloro-1,1,2,2,3,3,3-heptafluoropropaneC3F7Cl422-86-6
CFCR-ba2-Chloro-1,1,1,2,3,3,3-heptafluoropropaneC3F7Cl76-18-6
PFCR-OctafluoropropaneC3F876-19-7 A1
HCFCR-1,1,1,2,2,3-Hexachloro-3-fluoropropaneC3HFCl6422-26-40.015–0.07
HCFCR-PentachlorodifluoropropaneC3HF2Cl5134237-36-80.01–0.09
HCFCR-c1,1,1,3,3-Pentachloro-2,2-difluoropropaneC3HF2Cl5422-49-10.01–0.09
HCFCR-TetrachlorotrifluoropropaneC3HF3Cl4134237-37-90.01–0.08
HCFCR-ca1,1,3,3-Tetrachloro-1,2,2-trifluoropropaneC3HF3Cl4422-52-60.01–0.08
HCFCR-cb1,1,1,3-Tetrachloro-2,2,3-trifluoropropaneC3HF3Cl4422-50-40.01–0.08
HCFCR-TrichlorotetrafluoropropaneC3HF4Cl3134237-38-00.01–0.09
HCFCR-ca1,3,3-Trichloro-1,1,2,2-tetrafluoropropaneC3HF4Cl3422-54-80.01–0.09
HCFCR-cb1,1,3-Trichloro-1,2,2,3-tetrafluoropropaneC3HF4Cl3422-53-70.01–0.09
HCFCR-cc1,1,1-Trichloro-2,2,3,3-tetrafluoropropaneC3HF4Cl3422-51-50.01–0.09
HCFCR-DichloropentafluoropropaneC3HF5Cl2127564-92-50.01–0.05
HCFCR-aa2,2-Dichloro-1,1,1,3,3-pentafluoropropaneC3HF5Cl2128903-21-90.01–0.05
HCFCR-ba2,3-Dichloro-1,1,1,2,3-pentafluoropropaneC3HF5Cl2422-48-00.01–0.05
HCFCR-bb1,2-Dichloro-1,1,2,3,3-pentafluoropropaneC3HF5Cl2422-44-60.01–0.05
HCFCR-ca3,3-Dichloro-1,1,1,2,2-pentafluoropropaneC3HF5Cl2422-56-0
HCFCR-cb1,3-Dichloro-1,1,2,2,3-pentafluoropropaneC3HF5Cl2507-55-1
HCFCR-cc1,1-Dichloro-1,2,2,3,3-pentafluoropropaneC3HF5Cl213474-88-90.01–0.05
HCFCR-da1,2-Dichloro-1,1,3,3,3-pentafluoropropaneC3HF5Cl2431-86-70.01–0.05
HCFCR-ea1,3-Dichloro-1,1,2,3,3-pentafluoropropaneC3HF5Cl2136013-79-10.01–0.05
HCFCR-eb1,1-Dichloro-1,2,3,3,3-pentafluoropropaneC3HF5Cl2111512-56-20.01–0.05
HCFCR-ChlorohexafluoropropaneC3HF6Cl134308-72-80.02–0.1
HCFCR-ba2-Chloro-1,1,1,2,3,3-hexafluoropropaneC3HF6Cl51346-64-60.02–0.1
HCFCR-ca3-Chloro-1,1,1,2,2,3-hexafluoropropaneC3HF6Cl422-57-10.02–0.1
HCFCR-cb1-Chloro-1,1,2,2,3,3-hexafluoropropaneC3HF6Cl422-55-90.02–0.1
HCFCR-da2-Chloro-1,1,1,3,3,3-hexafluoropropaneC3HF6Cl431-87-80.02–0.1
HCFCR-ea1-Chloro-1,1,2,3,3,3-hexafluoropropaneC3HF6Cl359-58-00.02–0.1
HFCR-ca1,1,2,2,3,3,3-HeptafluoropropaneC3HF72252-84-8
HFCR-ca2Trifluoromethyl 1,1,2,2-tetrafluoroethyl etherC3HF7O2356-61-8
HFCR-ea1,1,1,2,3,3,3-HeptafluoropropaneC3HF7431-89-0 A1
HFCR-meTrifluoromethyl 1,2,2,2-tetrafluoroethyl etherC3HF7O2356-62-9
HCFCR-PentachlorofluoropropaneC3H2FCl5134190-48-00.05–0.09
HCFCR-TetrachlorodifluoropropaneC3H2F2Cl4134237-39-10.008–0.1
HCFCR-ca1,1,3,3-Tetrachloro-2,2-difluoropropaneC3H2F2Cl41112-14-70.008–0.1
HCFCR-cb1,1,1,3-Tetrachloro-2,2-difluoropropaneC3H2F2Cl4677-54-30.008–0.1
HCFCR-TrichlorotrifluoropropaneC3H2F3Cl3134237-40-40.007–0.23
HCFCR-ca1,1,3-Trichloro-2,2,3-trifluoropropaneC3H2F3Cl3131221-36-80.007–0.23
HCFCR-cb1,1,3-Trichloro-1,2,2-trifluoropropaneC3H2F3Cl3421-99-80.007–0.23
HCFCR-cc1,1,1-Trichloro-2,2,3-trifluoropropaneC3H2F3Cl3131211-71-70.007–0.23
HCFCR-DichlorotetrafluoropropaneC3H2F4Cl2127564-83-40.01–0.28
HCFCR-aa2,2-Dichloro-1,1,3,3-tetrafluoropropaneC3H2F4Cl217705-30-50.01–0.28
HCFCR-ab2,2-Dichloro-1,1,1,3-tetrafluoropropaneC3H2F4Cl2149329-24-80.01–0.28
HCFCR-ba1,2-Dichloro-1,2,3,3-tetrafluoropropaneC3H2F4Cl2425-94-50.01–0.28
HCFCR-bb2,3-Dichloro-1,1,1,2-tetrafluoropropaneC3H2F4Cl2149329-25-90.01–0.28
HCFCR-bc1,2-Dichloro-1,1,2,3-tetrafluoropropaneC3H2F4Cl2149329-26-00.01–0.28
HCFCR-ca1,3-Dichloro-1,2,2,3-tetrafluoropropaneC3H2F4Cl270341-81-00.01–0.28
HCFCR-cb1,1-Dichloro-2,2,3,3-tetrafluoropropaneC3H2F4Cl24071-01-60.01–0.28
HCFCR-cc1,3-Dichloro-1,1,2,2-tetrafluoropropaneC3H2F4Cl2422-00-40.01–0.28
HCFCR-cd1,1-Dichloro-1,2,2,3-tetrafluoropropaneC3H2F4Cl270192-63-10.01–0.28
HCFCR-da2,3-Dichloro-1,1,1,3-tetrafluoropropaneC3H2F4Cl2146916-90-70.01–0.28
HCFCR-fa1,3-Dichloro-1,1,3,3-tetrafluoropropaneC3H2F4Cl276140-39-10.01–0.28
HCFCR-fb1,1-Dichloro-1,3,3,3-tetrafluoropropaneC3H2F4Cl264712-27-20.01–0.28
HCFCR-ChloropentafluoropropaneC3H2F5Cl134237-41-50.03–0.52
HCFCR-ca1-Chloro-1,2,2,3,3-pentafluoropropaneC3H2F5Cl28103-66-40.03–0.52
HCFCR-cb3-Chloro-1,1,1,2,3-pentafluoropropaneC3H2F5Cl422-02-60.03–0.52
HCFCR-cc1-Chloro-1,1,2,2,3-pentafluoropropaneC3H2F5Cl679-99-20.03–0.52
HCFCR-da2-Chloro-1,1,1,3,3-pentafluoropropaneC3H2F5Cl134251-06-20.03–0.52
HCFCR-fa1-Chloro-1,1,3,3,3-pentafluoropropaneC3H2F5Cl677-55-40.03–0.52
HFCR-cb1,1,1,2,2,3-HexafluoropropaneC3H2F6677-56-5
HFCR-ea1,1,1,2,3,3-HexafluoropropaneC3H2F6431-63-0
HFCR-fa1,1,1,3,3,3-HexafluoropropaneC3H2F6690-39-1 A1±.35
HFCR-me1,2,2,2-Tetrafluoroethyl difluoromethyl etherC3H2F6O57041-67-5
HCFCR-TetrachlorofluoropropaneC3H3FCl4134190-49-10.004–0.09
HCFCR-TrichlorodifluoropropaneC3H3F2Cl3134237-42-60.005–0.13
HCFCR-DichlorotrifluoropropaneC3H3F3Cl2134237-43-70.007–0.12
HCFCR-ca1,3-Dichloro-1,2,2-trifluoropropaneC3H3F3Cl267406-68-20.007–0.12
HCFCR-cb1,1-Dichloro-2,2,3-trifluoropropaneC3H3F3Cl270192-70-00.007–0.12
HCFCR-cc1,1-Dichloro-1,2,2-trifluoropropaneC3H3F3Cl27125-99-70.007–0.12
HCFCR-da2,3-Dichloro-1,1,1-trifluoropropaneC3H3F3Cl2338-75-00.007–0.12
HCFCR-ea1,3-Dichloro-1,2,3-trifluoropropaneC3H3F3Cl2151771-08-30.007–0.12
HCFCR-ec1,3-Dichloro-1,1,2-trifluoropropaneC3H3F3Cl2149329-27-10.007–0.12
HCFCR-ChlorotetrafluoropropaneC3H3F4Cl134190-50-40.009–0.14
HCFCR-ba2-Chloro-1,2,3,3-tetrafluoropropaneC3H3F4Cl149329-28-2 0.009–0.14
HCFCR-bb2-Chloro-1,1,1,2-tetrafluoropropaneC3H3F4Cl421-73-80.009–0.14
HCFCR-ca3-Chloro-1,1,2,2-tetrafluoropropaneC3H3F4Cl679-85-60.009–0.14
HCFCR-cb1-Chloro-1,2,2,3-tetrafluoropropaneC3H3F4Cl67406-66-00.009–0.14
HCFCR-cc1-Chloro-1,1,2,2-tetrafluoropropaneC3H3F4Cl421-75-00.009–0.14
HCFCR-da2-Chloro-1,1,3,3-tetrafluoropropaneC3H3F4Cl19041-02-20.009–0.14
HCFCR-db2-Chloro-1,1,1,3-tetrafluoropropaneC3H3F4Cl117970-90-80.009–0.14
HCFCR-ea3-Chloro-1,1,2,3-tetrafluoropropaneC3H3F4Cl0.009–0.14
HCFCR-eb3-Chloro-1,1,1,2-tetrafluoropropaneC3H3F4Cl151771-09-40.009–0.14
HCFCR-ec1-Chloro-1,1,2,3-tetrafluoropropaneC3H3F4Cl149448-09-90.009–0.14
HCFCR-fa3-Chloro-1,1,1,3-tetrafluoropropaneC3H3F4Cl149329-29-30.009–0.14
HCFCR-fb1-Chloro-1,1,3,3-tetrafluoropropaneC3H3F4Cl2730-64-50.009–0.14
HFCR-ca1,1,2,2,3-PentafluoropropaneC3H3F5679-86-7
HFCR-cbPentafluoropropaneC3H3F51814-88-6
HFCR-ea1,1,2,3,3-PentafluoropropaneC3H3F524270-66-4
HFCR-eb1,1,1,2,3-PentafluoropropaneC3H3F5431-31-2
HFCR-fa1,1,1,3,3-PentafluoropropaneC3H3F5460-73-1 B1
HFCR-mcMethyl pentafluoroethyl etherC3H3F5O22410-44-2
HFCR-mfDifluoromethyl 2,2,2-trifluoroethyl etherC3H3F5O1885-48-9
HFCR-qcDifluoromethyl 1,1,2-trifluoroethyl etherC3H3F5O69948-24-9
HCFCR-TrichlorofluoropropaneC3H4FCl3134190-51-50.001–0.01
HCFCR-DichlorodifluoropropaneC3H4F2Cl2134190-52-60.005–0.04
HCFCR-ca1,3-Dichloro-2,2-difluoropropaneC3H4F2Cl21112-36-30.005–0.04
HCFCR-cb1,1-Dichloro-2,2-difluoropropaneC3H4F2Cl21112-01-20.005–0.04
HCFCR-dc1,2-Dichloro-1,1-difluoropropaneC3H4F2Cl27126-15-00.005–0.04
HCFCR-ec1,1-Dichloro-1,2-difluoropropaneC3H4F2Cl2151771-10-70.005–0.04
HCFCR-ChlorotrifluoropropaneC3H4F3Cl134237-44-80.003–0.03
HCFCR-ba2-Chloro-1,2,3-trifluoropropaneC3H4F3Cl151771-11-80.003–0.03
HCFCR-bb2-Chloro-1,1,2-trifluoropropaneC3H4F3Cl69202-10-40.003–0.03
HCFCR-ca1-Chloro-2,2,3-trifluoropropaneC3H4F3Cl56758-54-40.003–0.03
HCFCR-cb1-Chloro-1,2,2-trifluoropropaneC3H4F3Cl70192-76-60.003–0.03
HCFCR-ea3-Chloro-1,1,2-trifluoropropaneC3H4F3Cl121612-65-50.003–0.03
HCFCR-eb1-Chloro-1,2,3-trifluoropropaneC3H4F3Cl151771-12-90.003–0.03
HCFCR-ec1-Chloro-1,1,2-trifluoropropaneC3H4F3Cl134251-05-10.003–0.03
HCFCR-fa3-Chloro-1,3,3-trifluoropropaneC3H4F3Cl0.003–0.03
HCFCR-fb3-Chloro-1,1,1-trifluoropropaneC3H4F3Cl460-35-50.003–0.03
HCFCR-fc1-Chloro-1,1,3-trifluoropropaneC3H4F3Cl83124-56-50.003–0.03
HFCR-cb1,1,2,2-TetrafluoropropaneC3H4F440723-63-5
HFCR-pcMethyl 1,1,2,2-tetrafluoroethyl etherC3H4F4O425-88-7
HCFCR-DichlorofluoropropaneC3H5FCl2134237-45-90.002–0.02
HCFCR-ba1,2-Dichloro-2-fluoropropaneC3H5FCl2420-97-30.002–0.02
HCFCR-ChlorodifluoropropaneC3H5F2Cl134190-53-70.002–0.02
HCFCR-ca1-Chloro-2,2-difluoropropaneC3H5F2Cl420-99-50.002–0.02
HCFCR-fa3-Chloro-1,1-difluoropropaneC3H5F2Cl83124-57-60.002–0.02
HCFCR-fb1-Chloro-1,3-difluoropropaneC3H5F2Cl151771-13-00.002–0.02
HFCR-TrifluoropropaneC3H5F394458-05-6
HCFCR-ChlorofluoropropaneC3H6FCl134190-54-80.001–0.03
HCFCR-b2-Chloro-2-fluoropropaneC3H6FCl420-44-00.001–0.03
HCFCR-d2-Chloro-1-fluoropropaneC3H6FCl20372-78-50.001–0.03
HCFCR-fb1-Chloro-1-fluoropropaneC3H6FCl430-55-70.001–0.03
HFCR-DifluoropropaneC3H6F294458-04-5
HFCR-FluoropropaneC3H7F106857-11-8
HCR-PropaneC3H8 or CH3CH2CH374-98-6 days< 0(smog)– A3±.2
CFCR-C316DichlorohexafluorocyclobutaneC4Cl2F6356-18-374.6 ± 3(E),114.1 ± 10 (Z)[5] 0.40(E), 0.49(Z)4,160(E), 5,400(Z)
CFCR-C317ChloroheptafluorocyclobutaneC4ClF7377-41-3
PFCR-C318Octafluorocyclobutane (Perfluorocyclobutane)C4F8 or -(CF2)4-115-25-3 A1
PFCR-3-1-10Decafluorobutane (Perfluorobutane)C4F10355-25-9
HFCR-ccb1,1,1,2,2,3,3,4,4-NonafluorobutaneC4HF9375-17-7
HFCR-eea1,1,1,2,3,4,4,4-OctafluorobutaneC4H2F875995-72-1
HFCR-ccd1,1,1,2,2,3,3-HeptafluorobutaneC4H3F7662-00-0
HFCR-mccPerfluoropropyl methyl etherC4H3F7O375-03-1
HFCR-mmyPerfluoroisopropyl methyl etherC4H3F7O22052-84-2-R-356mcf
R-356mffm -->
HFCR-mfc1,1,1,3,3-PentafluorobutaneC4H5F5406-58-6
PFCR-4-1-12Dodecafluoropentane (Perfluoropentane)C5F12678-26-2
PFCR-5-1-14Tetradecafluorohexane (Perfluorohexane)C6F14355-42-0
CFCR-R-12/114(50/50 wt%) OR
(60/40)(must be specified)		50% CCl2F250% C2F4Cl2 OR
60% CCl2F240% C2F4Cl2		 OR

 A1
1,000 A1		28,000
30,000		160
170
HCFCR-AR-22/152a/124 (53±2/13+.5,-1.5/34±1)53±2% CHClF213+.5,-1.5% C2H4F234±1% C2HF4ClMP-39 A1−34.4/−28.8
HCFCR-BR-22/152a/124 (61±2/11+.5,-1.5/28±1)61±2% CHClF211+.5,-1.5% C2H4F228±1% C2HF4ClMP-66 A1−35.7/−30.8
HCFCR-CR-22/152a/124 (33±2/15+.5,-1.5/52±1)33±2% CHClF215+.5,-1.5% C2H4F252±1% C2HF4ClMP-52 A1−30.5/−23.8
HCFCR-AR-125/290/22 (60±2/2±1/38±2)60±2% C2HF52±1% C3H838±2%  CHClF2HP-80? A1−49.2/−47.0
HCFCR-BR-125/290/22 (38±2/2±1/60±2)38±2% C2HF52±1% C3H860±2% CHClF2HP-81? A1−47.2/−44.9
HCFCR-AR-290/22/218 (5+.2,-2/75±2/20±0)5+.2,-2% C3H875±2% CHClF220±0% C3F8ISCEON 69-S? A2−44.0/−42.3
HCFCR-BR-290/22/218 (5+.2,-2/56±2/39±0)5+.2,-2% C3H856±2% CHClF239±0% C3F8ISCEON 69-L? A1−43.8/−42.3
HFCR-AR-125/143a/134a (44±2/52±1/4±2)44±2% C2HF552±1% C2H3F34±2% C2H2F4HP-62, FX-70 A1−46.6/−45.8
HCFCR-AR-22/152a/142b/C318 (45±0/7±1/5.5±1/42.5±2)45±0% CHClF27±1% C2H4F25.5±1% C2H3F2Cl42.5±2% C4F8GREENCOOL G2015 A1?−32.9/−24.5
HCFCR-AR-22/600a/142b (55±2/4±1/41±0)55±2% CHClF24±1% C4H1041±0% C2H3F2ClGHG? A2−32.7/−23.5
HCFCR-BR-22/600a/142b (65±2/4±1/31±0)65±2% CHClF24±1% C4H1031±0% C2H3F2ClGHG-HP?? A2???
HFCR-AR-32/125/134a (20±2/40±2/40±2)20±2% CH2F240±2% C2HF540±2% C2H2F4Klea 60 A1−45.2/−38.7
HFCR-BR-32/125/134a (10±2/70±2/20±2)10±2% CH2F270±2% C2HF520±2% C2H2F4Klea 61 A1−46.8/−42.4
HFCR-CR-32/125/134a (23±2/25±2/52±2)23±2% CH2F225±2% C2HF552±2% C2H2F4Klea 66, AC9000 A1−43.8/−36.7
HFCR-DR-32/125/134a (15±2/15±2/70±2)15±2% CH2F215±2% C2HF570±2% C2H2F4 A1−39.4/−32.7
HFCR-ER-32/125/134a (25±2/15±2/60±2)25±2% CH2F215±2% C2HF560±2% C2H2F4 A1−42.8/−35.6
HFCR-FR-32/125/134a (30±2/30±2/40±2)30±2% CH2F230±2% C2HF540±2% C2H2F4Genetron Performax LT A1−46.1/−39.7
HCFCR-AR-125/143a/22 (7±2/46±1/47±2)7±2% C2HF546±1% C2H3F347±2% CHClF2FX-10 A1−45.5/−45.0
HCFCR-AR-22/124/142b (60±2/25±2/15±1)60±2% CHClF225±2% C2HF4Cl15±1% C2H3F2ClFX-56 A1−35.4/−27.5
HCFCR-BR-22/124/142b (65±2/25±2/10±1)65±2% CHClF225±2% C2HF4Cl10±1% C2H3F2ClFX-57 A1−36.5/−29.7
HFCR-AR-32/125 (50+.5,–1.5/50+1.5,–.5)50+.5,–1.5% CH2F250+1.5,–.5% CHF2CF3[6] AZ-20, Puron, Suva 9100 A1−51.6/−51.5
HFCR-BR-32/125 (45±1/55±1)45±1% CH2F255±1% CHF2CF3AC9100? A1−51.5/−51.4
HCFOR-AR-1270/22/152a (1.5+0,–1/87.5+2,–0/11+0,–1)1.5+0,–1% C3H687.5+2,–0% CHClF211+0,–1% C2H4F2GREENCOOL G2018a A2−39.7/−37.2
HCFOR-BR-1270/22/152a (3+0,–1/94+2,–0/3+0,–1)3+0,–1% C3H694+2,–0% CHClF23+0,–1% C2H4F2GREENCOOL G2018b A2−41.6/−41.3
HCFOR-CR-1270/22/152a (3+0,–1/95.5+2,–0/1.5+0,–1)3+0,–1% C3H695.5+2,–0% CHClF21.5+0,–1% C2H4F2GREENCOOL G2018c? A2???
HCFCR-AR-22/218/142b (70±2/5±2/25±1)70±2% CHClF25±2% C3F825±1% C2H3F2ClArcton TP5R A2−36.4/−28.8
HFCR-AR-218/134a/600a (9±1/88±2/3+0,–1)9±1% C3F888±2% C2H2F43+0,–1% C4H10ISCEON 49? A2−29.3/−27.6
HCFCR-AR-22/124/600a/142b (51±2/28.5±2/4±.5/16.5+.5,–1)51±2% CHClF228.5±2% C2HF4Cl4±.5% C4H1016.5+.5,–1% C2H3F2ClGHG-X4, Autofrost, Chill-It? A1−34.0/−25.8
HCFCR-BR-22/124/600a/142b (50±2/39±2/1.5±.5/9.5+.5,–1)50±2% CHClF239±2% C2HF4Cl1.5±.5% C4H109.5+.5,–1% C2H3F2ClHot Shot, Kar Kool? A1−34.4/−26.1
HCFCR-AR-22/152a (82±1/18±1)82±1% CHClF218±1% C2H4F2 A2−37.5/−34.7
HCFCR-BR-22/152a (25±1/75±1)25±1% CHClF275±1% C2H4F2 A2−23.4/−21.8
HCFCR-AR-134a/124/600 (59+.5,–1/39.5+1,–.5/1.5+1,–.2)59+.5,-1% C2H2F439.5+1,–.5% C2HF4Cl1.5+1,–.2% C4H10FRIGC (FR-12)? A1−38.0/−32.9
HFCR-AR-125/134a/600 (46.6±1.1/50±1/3.4+.1,–.4)46.6±1.1% C2HF550±1% C2H2F43.4+.1,–.4% C4H10ISCEON 59, NU-22? A1−41.2/−40.1
HFCR-BR-125/134a/600 (79±1/18.3±1/2.7+.1,–.5)79±1% C2HF518.3±1% C2H2F42.7+.1,–.5% C4H10? A1−44.9/−41.5
HCFCR-AR-290/22/152a (1.5±.5/96±1/2.5±.5)1.5±.5% C3H896±1% CHClF22.5±.5% C2H4F2? A2−42.6/−36.0
HFCR-AR-125/134a/E170 (77±1/19±1/4±1)77±1% C2HF519±1% C2H2F44±1% C2H6O A2−25.0/−24.2
HCFCR-AR-134a/142b (88+1,–0/12+0,–1)88+1,–0% C2H2F412+0,–1% C2H3F2ClChoice Refrigerant A1−34.4/−28.8
HFCR-AR-125/134a (58±1/42±1)58±1% C2HF542±1% C2H2F4Choice R421A A1
HFCR-BR-125/134a (85±1/15±1)85±1% C2HF515±1% C2H2F4Choice 421B A1
HFCR-AR-125/134a/600a (85.1±1/11.5±1/3.4+.1,–.4)85.1±1% C2HF511.5±1% C2H2F43.4+.1,–.4% C4H10ISCEON 79? A1
HFCR-B (NU-22B)R-125/134a/600a (55±1/42±1/3+.1,–.5)55±1% C2HF542±1% C2H2F43+.1,–.5% C4H10ICOR XAC1? A1
HFCR-CR-125/134a/600a (82±1/15±1/3+.1,–.5)82±1% C2HF515±1% C2H2F43+.1,–.5% C4H10ICOR XLT1? A1
HFCR-DR-125/134a/600a (65.1+.9,–1.1/31.5±1/3.4+.1,–.4)65.1+.9,–1.1% C2HF531.5±1% C2H2F43.4+.1,–.4% C4H10ISCEON MO29? A1
HFCR-AR-134a/227ea (52.5±1/47.5±1)52.5±1% C2H2F447.5±1% C3HF7 A1
HFCR-AR-125/134a/600a/600/601a (50.5±1/47±1/.9+.1,–.2/1+.1,+.2/.6+.1,–.2)50.5±1% C2HF547±1% C2H2F41.9+.3,–.1% C4H10.6+.1,–.2% C5H12RS-44 (new comp.)?? A1
HFCR-AR-32/134a/227ea (18.5±.5/69.5±.5/12±.5)18.5±.5% CH2F269.5±.5% C2H2F412±.5% C3HF7 A1
HFCR-AR-125/134a/600/601a (5.1±1/93±1/1.3+.1,–.2/.6+.1,–.2)5.1±1% C2HF593±1% C2H2F41.3+.1,–.2% C4H10.6+.1,–.2% C5H12RS-24 (new comp.)?? A1
HFCR-AR-32/125/143a/134a (15±2/25±2/10±2/50±2)15±2% CH2F225±2% C2HF510±2% C2H3F350±2% C2H2F4Forane 427A A1
HFCR-AR-125/143a/290/600a (77.5±1/20±1/.6+.1,–.2/1.9+.1,–.2)77.5±1% C2HF520±1% C2H3F3.6+.1,–.2% C3H81.9+.1,–.2% C4H10RS-52?<0(smog) A1
HFCR-AR-E170/152a/600a (60±1/10±1/30±1)60±1% C2H6O10±1% C2H4F230±1% C4H10?<0(smog) A3
HFCR-AR-152a/600a (76±1/24±1)76±1% C2H4F224±1% C4H10? A3
HFCR-AR-290/152a (71±1/29±1)71±1% C3H829±1% C2H4F2?<0(smog) A3
HOR-AR-1270/E170 (80±1/20±1)80±1% C3H620±1% C2H6O?<0(smog) A3
HOR-AR-1270/290 (30±1/70±1)30±1% C3H670±1% C3H8 ± 3< 0(smog) A3−44.6/−44.2?
HOR-BR-1270/290 (5±1/95±1)5±1% C3H695±1% C3H8 ± 3< 0(smog) A3−42.7/−42.5
HOR-CR-1270/290 (25±1/75±1)25±1% C3H675±1% C3H8 ± 3< 0(smog) A3−44.3/−43.9
HFCR-AR-125/143a/134a/600a (63.2±1/18±1/16±1/2.8+.1,–.2)63.2±1% C2HF518±1% C2H3F316±1% C2H2F42.8+.1,–.2% C4H10RS-45? A1−45.0/−42.3
HFCR-AR-E170/152a (80±1/20±1)80±1% C2H6O20±1% C2H4F2<0(smog) A3−26.1/−25.9
HCR-AR-290/600a (56±1/44±1)56±1% C3H844±1% C4H10 ± 3<0(smog) A3−34.3/−26.2
HCR-BR-290/600a (52±1/48±1)52±1% C3H848±1% C4H10 ± 3<0(smog) A3−33.4/−25.0
HFCR-AR-125/134a/600/601 (19.5+.5,–1.8/78.5+1.5,–.7/1.4+.1,–.2/.6+.1,–.2)19.5+.5,–1.8% C2HF578.5+1.5,–.7% C2H2F41.4+.1,–.2% C4H10.6+.1,–.2% C5H12?? A1−32.9/−29.2
HFCR-AR-32/125/134a/600/601a (8.5+.5,-1.5/45±1.5/44.2±1.5/1.7+.1,-.2/.6+.1,-.2)8.5+.5,-1.5% CH2F245±1.5% C2HF544.2±1.5% C2H2F41.7+.1,-.2% C4H10.6+.1,-.2% C5H12KDD5, ISCEON MO99?? A1−43.0/−36.4
HFCR-AR-32/125/600a (50±1/47±1/3±.5)50±1% CH2F247±1% C2HF53±.5% C4H10? A2−52.0/−51.8
HFCR-AR-290/134a/152a (.6±.1/1.6±.6/97.8±.5).6±.1% C3H81.6±.6% C2H2F497.8±.5% C2H4F2?<0(smog) A2−25.5/−24.3
HCR-AR-170/290/600a/600 (3.1±.3/54.8±2/6±.6/36.1±2)3.1±.3% C2H654.8±2% C3H842.1±2.6% C4H10HCR-188C ± 3<0(smog) A3−41.9/−20.4
HFC /HFO[7] R-AR-32/125/134a/1234ze/1234yf(26%/26%/21%/7%/20%)26% CH2F2
26% C2HF5
21% C2H2F4 7% C3H2F4
20% C3H2F4		Solistice N-4001273A186.3[8] 4,660
HFOR-AR-32/R-125/134a/1234yf
(24.3%/24.7%/25.7%/25.3%)		24.3% CH2F2
24.7% C2HF5
25.7% C2H2F4
25.3% C3H2F4		Forane 449a[9] 0A187.2
HFOR-452AR-32/R-125/1234yf
(11%/59%/30%)		11% CH2F2
59% C2HF5
30% C3H2F4		Opteon™️ XP44, Solstice® R452A
HFOR-BR-32/R-125/1234yf
(67.0%/7.0%/26.0%)		67.0% CH2F2
7.0% C2HF5
26.0% C3H2F4		Opteon XL55,[10] Solstice L41y[11] 0A2L63.5−50.9/−50.15,220
HFCR-AR-32/125/134a/227ea/600/601a
(20%/20%/53.8%/5%/0.6%/0.6%)		20.0% CH2F2
20.0% C2HF5
53.8% C2H2F4
5.0% C3HF7
0.6% C4H10
0.6% C5H12		RS-70[12] 01,000 A188.84,530
HFOR-AR-32/1234yf (35.0%/65.0%)35.0% CH2F2
65.0% C3H2F4		Opteon XL40[13] 0A2L80.5
HFOR-BR-32/1234yf (68.9%/31.1%)68.9% CH2F2
31.1% C3H2F4		Opteon XL41,[14] Puron Advance[15] 0A2L62.6
HFOR-CR-32/1234yf (21.5%/78.5%)21.5% CH2F2
78.5% C3H2F4		Opteon XL20[16] 0A2L90.8
HFOR-AR-32/1234yf/744 (75.5%/21.5%/3%)21.5% CH2F2
75.5% C3H2F4
3% CO2		Solstice L40x[17] 0A2L87.5−52.3/−39.44,660
HFOR-AR-32/134a/1234ze(E) (6.0%/45.0%/49.0%)6.0% CH2F2
45.0% C2H2F4
49.0% C3H2F4		0687
HFOR-AR-32/152a/1234yf
(18.0%/12.0%/70.0%)		18.0% CH2F2
12.0% C2H4F2
70.0% C3H2F4		Forane 457a[18] 0[19] A2L
HFCR-AR-32/125/134a/227ea/236fa (20.5%/4.0%/61.4%/13.5%/0.6%)20.5% CH2F2
4.0% C2HF5
61.4% C2H3F3
13.5% C3HF7
0.6% C3H2F6		0[20]
HFOR-AR-32/1234yf(E)/1234ze(E) (68.0%/26.0%/6.0%)68.0% CH2F2
26.0% C3H2F4
6.0% C3H2F4		Forane 459a0460
HFC/HR-466AR-32/125/13I1 (49/11.5/39.5)49% CH2F2
11.5% C2HF5
39.5% CIF3		Solstice N41[21] 0733A1−51.776.55144
HCFCR-R-12/152a (73.8/26.2)73.8% CCl2F226.2% C2H4F2Carrene #7 A1−33/0
HCFCR-R-22/12 (75/25)75% CHClF225% CCl2F2 A1/−41
HCFCR-R-22/115 (48.8/51.2)48.8% CHClF251.2% C2F5Cl A1/19
HCFCR-R-23/13 (40.1/59.9)40.1% CHF359.9% CClF3 A1???/88
HCFCR-R-32/115 (48.2/51.8)48.2% CH2F251.8% C2F5Cl A1?/17
HCFCR-R-12/31 (78/22)78% CCl2F222% CH2FCl++? B2???/115
HCFCR-R-31/114 (55.1/44.9)55.1% CH2FCl44.9% C2F4Cl2++? B2???/18
HFCR-[A]R-125/143a (50/50)50% C2HF550% C2H3F3AZ-50 A1/−40
HFCR-[A]R-23/116 (39/61)39% CHF361% C2F6Klea 5R3 A1/−86
HFCR-BR-23/116 (46/54)46% CHF354% C2F6Suva 95 A1-88.3/−45.6
HCFCR-[A]R-22/218 (44/56)44% CHClF256% C3F8Arcton TP5R2 A1/0
HCR-[A]R-E170/600a (88±.5/12±.5)88±.5% C2H6O12±.5% C4H10?<0(smog) A3/−25.2
HCR-[A]R-290/E170 (95±1/5±1)95±1% C3H85±1% C2H6O?< 0(smog) A3/−20-40
HFOR-AR-1234yf/134a (56%/44%)56% C3H2F4 44% C2H2F4A1
HFOR-AR-1336mzz-Z/trans-1,2-Dichloroethene(t-DCE)(74.7%/25.3%)[22] 74.7% C4H2F6 25.3% C2H2CL2[23] B1
HFOR-BR-1234ze/227ea [24]
HCR-ButaneC4H10 or CH3CH2CH2CH3106-97-8 days– A3??±1
HCR-aIsobutaneC4H10 or CH(CH3)2CH375-28-5 ± 3 A3
HCR-PentaneC5H12 or CH3CH2CH2CH2CH3109-66-0 ± 3 ± 2 A3±.2
HCR-aIsopentaneC5H12 or (CH3)2CHCH2CH378-78-4 ± 3 ± 2 A3
HCR-Ethoxyethane (Diethyl ether)CH3CH2OCH2CH360-29-7 ± 3< 0(smog) ± 2 A3?
HCR-Methyl formateHCOOCH3107-31-3 ± 3< 25 B2
HCHC-12aPropane/isobutane[25] 40–70% C3H8 · 30–60% C4H6 (by volume)
HCHC-22aPropaneC3H8 98% by volume
HCHC-502aPropane/ethaneC3H8 60–100% · C2H6 3-7% (by volume)
HFC / HFODR-14A[26]
HFCSP34E[27] R-134a (98.5%)C2H2F4 (98.5%)
R-MethylamineCH3NH274-89-5
R-EthylamineCH3CH2(NH2)75-04-7
R-HydrogenH21333-74-0 A3
R-HeliumHe7440-59-7Unlimited? A1
R-AmmoniaNH37664-41-7< B2L
R-Water/SteamH2O7732-18-5 ± 0.2 A1
R-NeonNe7440-01-9Unlimited? A1
R-NitrogenN27727-37-9Unlimited A1
R-Air N2/O2/Ar (78.082/20.945/.934 vol%)78.082% N220.945% O2.934% ArUnlimited+ A1??
R-OxygenO27782-44-7Unlimited< 0 A1?
R-ArgonAr7440-37-1Unlimited? A1
R-Carbon dioxideCO2124-38-929,300-36,100 A1 at 518 kPa
R-ANitrous oxideN2O10024-97-2 A1?
R-Sulfur dioxideSO27446-09-5 B1
R-KryptonKr7439-90-9Unlimited? A1?
CFOR-a1,1-Dichloro-2,2-difluoroethyleneC2Cl2F279-35-6
CFOR-ChlorotrifluoroethyleneC2ClF379-38-9
PFOR-TetrafluoroethyleneC2F4116-14-3
HCOR-Trichloroethylene (trielene)C2HCl379-01-6
HCOR-(E)trans-1,2-DichloroethyleneC2H2Cl2156-60-5< 25
HFOR-a1,1-DifluoroethyleneC2H2F275-38-7[28]
HCOR-Chloroethylene (vinyl chloride)C2H3Cl75-01-4? B3
HFOR-Fluoroethylene (vinyl fluoride)C2H3F75-02-5
HOR-Ethene (Ethylene)CH2=CH274-85-1 ± 3< 0(smog) A3
PFOR-HexafluoropropyleneC3F6116-15-4++
PFOR-Hexafluoropropene trimer(C3F6)36792-31-0
HCFOR-yd(Z)(Z)-2,3,3,3,-Tetrafluoro-1-Chloropropene[29] [30] [31] (Z)-CF3-CF=CHCl111512-60-80.032 (21 days)[32] 0.00012<1148.514°C156°C3330
HCFOR-zd(E)trans-1-chloro-3,3,3-trifluoropropeneC3H2ClF3102687-65-0
HFOR-yf2,3,3,3-TetrafluoropropeneC3H2F4754-12-1[33] A2L
HFOR-ze(E)trans-1,3,3,3-tetrafluoropropeneC3H2F429118-24-9 A2L
HOR-Propene (Propylene)C3H6 or CH3CH=CH2115-07-1 ± 3< 0(smog) A3
HFOR-mzz(E)trans-1,1,1,4,4,4-hexafluoro-2-buteneC4H2F666711-86-2
HFOR-mzz(Z) (DR-2)[34] cis-1,1,1,4,4,4-hexafluoro-2-butene CF3CH=CHCF3(Z)692-49-9A1
T
y
p
e		ASHRAE
number		IUPAC chemical nameMolecular
formula		CAS no/
blend
name		Atmospheric
lifetime
(years)		Semi-
empirical
ODP		Net
GWP
100-yr		OEL/PEL
ppm (v/v) &
ASHRAE 34
safety group		RCL/IDLHMolecular
mass
u		Boiling, or
bubble/dew
/azeotropic
point(s) °C		Critical
temp.
°C		Critical
pressure,
absolute
kPa
ppm
(v/v)		g/m3

Type and flammability

Legends
Types / Prefixes!Type!!Meaning!!Atoms in the Molecule
CFCChlorofluorocarbonCl, F, C
CFOChlorofluoroolefin
HCFCHydrochlorofluorocarbonH, Cl, F, C
HCFOHydrochlorofluoroolefin
HFCHydrofluorocarbonH, F, C
HFOHydrofluoroolefin
HCCHydrochlorocarbonH, Cl, C
HCOHydrochloroolefin
HCHydrocarbonH, C
HOOlefin (Alkene)
PFCPerfluorocarbonF, C
PFOPerfluoroolefin
PCCCl, C
HHalon/HaloalkaneBr, Cl (in some but not all), F, H (in some but not all), C
ASHRAE 34 Safety group
Higher Flammability
LFL or ETFL60 = 100 g/m3 OR HOC = 19 MJ/kg		A3B3
Lower Flammability
LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg		A2B2
Lower Flammability
LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg
with a maximum burning velocity of = 10 cm/s		A2LB2L
No flame PropagationA1B1
Flammability in Air @ 60 °C & 101.3 kPaLower Toxicity
OEL ≥ 400 ppm		Higher Toxicity
OEL < 400 ppm
LFL = Lower Flammability Limit
ETFL60 = Elevated Temperature Flame Limit @ 60 °C
HOC = Heat Of Combustion
Compounds used as refrigerants may be described using either the appropriate prefix above or with the prefixes "R-" or "Refrigerant." Thus, CFC-12 may also be written as R-12 or Refrigerant 12.
An alkene, olefin, or olefine is an unsaturated compound containing at least one carbon-carbon double bond.
Educated Estimates

See also

Notes and References

  1. Web site: Refrigerant blends to challenge hydrocarbon efficiencies. 22 December 2019.
  2. Myhre, G., D. Shindell, F.‐M. Bréon, W. Collins, J. Fuglestvedt, J. Huang, D. Koch, J.‐F. Lamarque, D. Lee, B. Mendoza, T. Nakajima, A. Robock, G. Stephens, T. Takemura and H. Zhang, 2013: Anthropogenic and Natural Radiative Forcing. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.‐K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, US.
  3. The Montreal Protocol on Substances that Deplete the Ozone Layer. UNEP, 2000.
  4. [Critical point (thermodynamics)#Table of liquid–vapor critical temperature and pressure for selected substances]
  5. 10.1021/jp407823k . 24079521 . 1,2-Dichlorohexafluoro-cyclobutane (1,2-c-C4F6Cl2, R-316c) a Potent Ozone Depleting Substance and Greenhouse Gas: Atmospheric Loss Processes, Lifetimes, and Ozone Depletion and Global Warming Potentials for the (E) and (Z) Stereoisomers . The Journal of Physical Chemistry A . 117 . 43 . 11049–11065 . 2013 . Papadimitriou . Vassileios C. . McGillen . Max R. . Smith . Shona C. . Jubb . Aaron M. . Portmann . Robert W. . Hall . Bradley D. . Fleming . Eric L. . Jackman . Charles H. . Burkholder . James B. . 2013JPCA..11711049P . 2060/20140012685 . 25162740 . free .
  6. http://www.ipcc.ch/pdf/assessment-report/ar4/wg1/ar4-wg1-chapter2.pdf IPCC Assessment Report 4 (AR4) 2007, Table 2.14, page 212
  7. Web site: Solstice® N40 (R-448A) European Refrigerants. 2020-12-13. www.honeywell-refrigerants.com.
  8. Web site: Solstice N40 TDS.
  9. Web site: Forane® 449A (XP40) Refrigerant - Product Information . Arkema . 2020-10-14 . 2020-10-16 . https://web.archive.org/web/20201016090957/https://www.forane.com/en/forane-refrigerants/our-products/product-viewer/Forane-449A-XP40/ . dead .
  10. Web site: Opteon™ XL55 Refrigerant - Product Information . Chemours . 2020-10-13 .
  11. Web site: Solstice® L41y (R-452B) Refrigerant - Brochure . Honeywell . 2020-10-13.
  12. Web site: Features and uses of RS-70 . Gas Servei . 2022-07-19.
  13. Web site: Opteon™ XL40 Refrigerant - Product Information . Chemours . 2020-10-13 .
  14. Web site: Opteon™ XL41 Refrigerant - Product Information . Chemours . 2020-10-13.
  15. Web site: Carrier Introduces Puron Advance™ . 19 December 2018 . Carrier . 2020-10-13.
  16. Web site: Opteon™ XL20 Refrigerant - Product Information . Chemours . 2020-10-13 .
  17. Web site: Solstice® L40X (R-455A) European Refrigerants . www.honeywell-refrigerants.com . en-US . 2018-09-24.
  18. Web site: Fluorinated alternatives in residential and light commercial applications - Forane Refrigerants . Arkema . 2020-10-13.
  19. Web site: 2020-06-12. Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program. 2020-07-01. Federal Register.
  20. Web site: Federal Register :: Protection of Stratospheric Ozone: Determination 33 for Significant New Alternatives Policy Program. www.federalregister.gov. en-US. 2019-08-16.
  21. Web site: Solstice® N41 (R-466A) . 2024-03-17 . advancedmaterials.honeywell.com . en-NZ.
  22. https://www.opteon.com/en/-/media/files/opteon/opteon-xp30-product-information.pdf?la=en&rev=dbb567acf6554988840dff8d3c725d97
  23. Web site: Trane adopts new low GWP refrigerant R514A. 15 June 2016.
  24. Web site: Honeywell launches R515B, its latest nonflammable HFO, as R134a replacement. 4 February 2020.
  25. Web site: HC Refrigerant.
  26. http://hpc2017.org/wp-content/uploads/2017/05/O.3.3.4-Novel-Working-Fluid-HFO-1336mzzE-for-Use-in-Waste-Heat-Recovery-Applications.pdf
  27. Web site: EPA Adds SP34E to SNAP Program.
  28. Web site: ICSC 0687 - VINYLIDENE FLUORIDE. www.ilo.org. en. 2018-06-18.
  29. Web site: 2017-10-23. New HCFO refrigerant is ASHRAE listed. 2021-02-06. Cooling Post. en-GB.
  30. Web site: NEC develops cooling technology for data centers that reduces air conditioning power by 50%. 2021-02-06. NEC. en.
  31. Web site: NEC, NTT develop data center cooling system using new low pressure refrigerant. 2021-02-06. www.datacenterdynamics.com. en.
  32. https://www.coolingpost.com/world-news/new-hcfo-refrigerant-ashrae-listed/
  33. Web site: Everitt . Neil . 2014-02-03 . IPCC confirms HFO GWPs are less than 1 . 2024-09-16 . Cooling Post . en-GB.
  34. https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2524&context=iracc

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