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List of refrigerants

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Main article: Refrigerant

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. The Kigali Amendment to the Montreal Protocol furthermore obliges signatory countries to limit the emission of gases with high global warming potential.

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 (1 − 1 = 0), one hydrogen atom (1 + 1 = 2), two fluorine atoms (2), 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 (2 + 1 = 3), four fluorine atoms (4), and no chlorine atoms (6 − 2 − 4 = 0), so it is one of the tetrafluoroethanes. This basic scheme is modified as follows:

Capital letters "B" and "I" are suffixed, together with atom counts, if chlorine atoms have been replaced with bromine or iodine.
If there are two carbons, the isomer without suffix is the most symmetrical; after this, lower-case suffixed letters "a", "b", ..., are added, moving forwards through the alphabet as symmetry decreases.
If there are more than two carbons, a more complex system of suffixed letters and possibly numbers is used to distinguish isomers, when necessary.
The suffixes "(Z)" and "(E)" may be used to differentiate (Z)- and (E)- (cis- and trans-) isomers.
For larger molecules, numerical "digits" exceeding 9 may occur; in this case, these numbers are separated by dashes.
For a cyclic carbon skeleton, the prefixed capital letter "C" is used.
For an oxygen-containing refrigerant (an ether), the prefixed capital letter "E" is used.

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

Zeotropic blends are numbered starting with 400. Suffixed capital letters "A", "B", ... may be used to distinguish different blends with the same constitutents.
Azeotropic blends are numbered similarly to zeotropic blends, but starting with 500.
Other organic chemicals may be numbered starting with 600. Suffixed lowercase letters "a", "b", ..., may be used to distinguish isomers.
Inorganic chemicals are given numbers equalling 700 plus their molecular weight, if the weight is less than 100, or 7000 plus the molecular weight otherwise. Suffixed capital letters "A", "B", ... may be used to distinguish different chemicals with the same molecular weight.

Columns

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

Type/prefix (see legends)
ASHRAE number
IUPAC chemical name
molecular formula
CAS registry number / blend name
Atmospheric lifetime in years
Semi-empirical ozone depletion potential, ODP (normalized to be 1 for R-11)
Net global warming potential, GWP, over a 100-year time horizon (normalized to be 1 for R-744, carbon dioxide)
Occupational exposure limit/permissible exposure limit in parts per million (volume per volume) over a time-weighted average (TWA) concentration for a normal eight-hour work day and a 40-hour work week
ASHRAE 34 safety group in toxicity & flammability (in air @ 60 °C, 101.3 kPa) classing (see legends)
Refrigerant concentration limit / immediately dangerous to life or health in parts per million (volume per volume) and grams per cubic meter
Molecular mass in daltons
Normal boiling points for pure substances, bubble and dew points for zeotropic blends, or normal boiling point and azeotropic temperature for the azeotropic blends, at (1 atmosphere) and in degrees Celsius
Critical temperature in degrees Celsius
Absolute critical pressure in kilopascals

Since over refrigerant blends are possible, this list should only have notable refrigerants and refrigerant blends.

List

Type	ASHRAE
number	IUPAC chemical name	Molecular
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
Da	Boiling, or
bubble/dew
/azeotropic
point(s) °C	Critical
temp.
°C	Critical
pressure,
absolute
kPa	T
y
p
e	ASHRAE
number	IUPAC chemical name	Molecular
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/IDLH	Molecular
mass
Da	Boiling, or
bubble/dew
/azeotropic
point(s) °C	Critical
temp.
°C	Critical
pressure,
absolute
kPa	ppm
(v/v)	g/m3
PCC	R-	carbon tetrachloride (tetrachloromethane)	CCl4	56-23-5				? B1
CFC	R-	trichlorofluoromethane	CCl3F	75-69-4				A1
CFC	R-	dichlorodifluoromethane	CCl2F2	75-71-8				A1
H	R-B1	bromochlorodifluoromethane	CBrClF2 or CF2ClBr	353-59-3
H	R-B2	dibromodifluoromethane	CBr2F2	75-61-6
CFC	R-	chlorotrifluoromethane	CClF3	75-72-9				A1	?	?
H	R-B1	bromotrifluoromethane	CBrF3 or CF3Br	75-63-8				A1
H	R-I1	trifluoroiodomethane	CF3I	2314-97-8				A1
PFC	R-	tetrafluoromethane	CF4	75-73-0				A1
HCC	R-	chloroform (trichloromethane)	CHCl3	67-66-3
HCFC	R-	dichlorofluoromethane	CHFCl2	75-43-4				? B1
HCFC	R-	chlorodifluoromethane	CHClF2	75-45-6				A1
H	R-B1	bromodifluoromethane	CHBrF2 or CHF2Br	1511-62-2
HFC	R-	trifluoromethane (fluoroform)	CHF3	75-46-7				A1
HCC	R-	dichloromethane (methylene chloride)	CH2Cl2	75-09-2				? B2
HCFC	R-	chlorofluoromethane	CH2FCl	593-70-4				? B2?	?	?
HFC	R-	difluoromethane	CH2F2	75-10-5				A2L
HCC	R-	chloromethane	CH3Cl	74-87-3				? B2
HFC	R-	fluoromethane	CH3F	593-53-3
HC	R-	methane	CH4	74-82-8	± 3			A3	?	?		±2
PCC	R-	hexachloroethane	C2Cl6	67-72-1
CFC	R-	pentachlorofluoroethane	C2FCl5	354-56-3
CFC	R-	[1,1,2,2-tetrachloro-1,2-difluoroethane](1-1-2-2-tetrachloro-1-2-difluoroethane)	C2F2Cl4	76-12-0
CFC	R-a	[1,1,1,2-tetrachloro-2,2-difluoroethane](1-1-1-2-tetrachloro-2-2-difluoroethane)	C2F2Cl4	76-11-9
CFC	R-	[1,1,2-trichloro-1,2,2-trifluoroethane](1-1-2-trichloro-1-2-2-trifluoroethane)	C2F3Cl3	76-13-1				A1
CFC	R-a	[1,1,1-trichloro-2,2,2-trifluoroethane](1-1-1-trichloro-2-2-2-trifluoroethane)	C2F3Cl3	354-58-5		{{#tag:ref	group=lower-alpha}}
CFC	R-	[1,2-dichlorotetrafluoroethane](1-2-dichlorotetrafluoroethane)	C2F4Cl2	76-14-2				A1
CFC	R-a	[1,1-dichlorotetrafluoroethane](1-1-dichlorotetrafluoroethane)	C2F4Cl2	374-07-2		{{#tag:ref	group=lower-alpha}}
H	R-B2	dibromotetrafluoroethane	C2F4Br2 or CF2BrCF2Br	124-73-2
CFC	R-	chloropentafluoroethane	C2F5Cl	76-15-3				A1
PFC	R-	hexafluoroethane	C2F6	76-16-4				A1
HCC	R-	pentachloroethane	C2HCl5	76-01-7
HCFC	R-	[1,1,2,2-tetrachloro-1-fluoroethane](1-1-2-2-tetrachloro-1-fluoroethane)	C2HFCl4	354-14-3		0.01–0.04
HCFC	R-a	[1,1,1,2-tetrachloro-2-fluoroethane](1-1-1-2-tetrachloro-2-fluoroethane)	C2HFCl4	354-11-0		0.01–0.04
HCFC	R-	[1,1,2-trichloro-2,2-difluoroethane](1-1-2-trichloro-2-2-difluoroethane)	C2HF2Cl3	354-21-2		0.02–0.08
HCFC	R-a	[1,1,2-trichloro-1,2-difluoroethane](1-1-2-trichloro-1-2-difluoroethane)	C2HF2Cl3	354-15-4		0.02–0.08{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1,1,1-trichloro-2,2-difluoroethane](1-1-1-trichloro-2-2-difluoroethane)	C2HF2Cl3	354-12-1		0.02–0.08{{#tag:ref	group=lower-alpha}}
HCFC	R-	[2,2-dichloro-1,1,1-trifluoroethane](2-2-dichloro-1-1-1-trifluoroethane)	C2HF3Cl2	306-83-2				B1
HCFC	R-a	[1,2-dichloro-1,1,2-trifluoroethane](1-2-dichloro-1-1-2-trifluoroethane)	C2HF3Cl2	354-23-4	?	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1,1-dichloro-1,2,2-trifluoroethane](1-1-dichloro-1-2-2-trifluoroethane)	C2HF3Cl2	812-04-4	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
HCFC	R-	[1-chloro-1,2,2,2-tetrafluoroethane](1-chloro-1-2-2-2-tetrafluoroethane)	C2HF4Cl	2837-89-0				A1
HCFC	R-a	[1-chloro-1,1,2,2-tetrafluoroethane](1-chloro-1-1-2-2-tetrafluoroethane)	C2HF4Cl	354-25-6	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
HFC	R-	pentafluoroethane	C2HF5	354-33-6				A1
HFC	R-E125	pentafluorodimethyl ether	C2F5OC2F5	3822-68-2
HCC	R-	[1,1,2,2-tetrachloroethane](1-1-2-2-tetrachloroethane)	C2H2Cl4	79-34-5
HCC	R-a	[1,1,1,2-tetrachloroethane](1-1-1-2-tetrachloroethane)	C2H2Cl4	630-20-6
HCFC	R-	[1,1,2-trichloro-2-fluoroethane](1-1-2-trichloro-2-fluoroethane)	C2H2FCl3	359-28-4		0.007–0.05
HCFC	R-a	[1,1,2-trichloro-1-fluoroethane](1-1-2-trichloro-1-fluoroethane)	C2H2FCl3	811-95-0		0.007–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1,1,1-trichloro-2-fluoroethane](1-1-1-trichloro-2-fluoroethane)	C2H2FCl3	2366-36-1		0.007–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-	[1,2-dichloro-1,2-difluoroethane](1-2-dichloro-1-2-difluoroethane)	C2H2F2Cl2	431-06-1		0.008–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-a	[1,1-dichloro-2,2-difluoroethane](1-1-dichloro-2-2-difluoroethane)	C2H2F2Cl2	471-43-2		0.008–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1,2-Dichloro-1,1-difluoroethane](1-2-dichloro-1-1-difluoroethane)	C2H2F2Cl2	1649-08-7		0.008–0.05
HCFC	R-c	[1,1-Dichloro-1,2-difluoroethane](1-1-dichloro-1-2-difluoroethane)	C2H2F2Cl2	1842-05-3		0.008–0.05{{#tag:ref	group=lower-alpha}}
H	R-bB2	[1,2-dibromo-1,1-difluoroethane](1-2-dibromo-1-1-difluoroethane)	C2H2Br2F2	75-82-1		0.2–1.5
HCFC	R-	[1-chloro-1,2,2-Trifluoroethane](1-chloro-1-2-2-trifluoroethane)	C2H2F3Cl	431-07-2		0.02–0.06{{#tag:ref	group=lower-alpha}}
HCFC	R-a	[1-chloro-2,2,2-trifluoroethane](1-chloro-2-2-2-trifluoroethane)	C2H2F3Cl	75-88-7		0.02–0.06
HCFC	R-b	[1-chloro-1,1,2-trifluoroethane](1-chloro-1-1-2-trifluoroethane)	C2H2F3Cl	421-04-5		0.02–0.06{{#tag:ref	group=lower-alpha}}
HFC	R-	[1,1,2,2-tetrafluoroethane](1-1-2-2-tetrafluoroethane)	C2H2F4	359-35-3
HFC	R-a	[1,1,1,2-tetrafluoroethane](1-1-1-2-tetrafluoroethane)	C2H2F4	811-97-2				A1
HFC	R-E134	bis(difluoromethyl)ether	C2H2F4O	1691-17-4		{{#tag:ref	group=lower-alpha}}
HCC	R-	[1,1,2-trichloroethane](1-1-2-trichloroethane)	C2H3Cl3	79-00-5								±2.5
HCC	R-a	[1,1,1-trichloroethane (methyl chloroform)](1-1-1-trichloroethane)	C2H3Cl3 or CH3CCl3	71-55-6
HCFC	R-	[1,2-dichloro-1-fluoroethane](1-2-dichloro-1-fluoroethane)	C2H3FCl2	430-57-9	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
H	R-B2	[1,2-dibromo-1-fluoroethane](1-2-dibromo-1-fluoroethane)	C2H3Br2F	358-97-4		0.1–1.7
HCFC	R-a	[1,1-dichloro-2-fluoroethane](1-1-dichloro-2-fluoroethane)	C2H3FCl2	430-53-5	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1,1-dichloro-1-fluoroethane](1-1-dichloro-1-fluoroethane)	C2H3FCl2	1717-00-6				A2?
HCFC	R-a	[1-chloro-1,2-difluoroethane](1-chloro-1-2-difluoroethane)	C2H3F2Cl	338-64-7	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}	?{{#tag:ref	group=lower-alpha}}
HCFC	R-b	[1-chloro-1,1-difluoroethane](1-chloro-1-1-difluoroethane)	C2H3F2Cl	75-68-3				A2
HFC	R-	[1,1,2-trifluoroethane](1-1-2-trifluoroethane)	C2H3F3	430-66-0
HFC	R-a	[1,1,1-trifluoroethane](1-1-1-trifluoroethane)	C2H3F3	420-46-2				A2L
HFC	R-E143a	methyl trifluoromethyl ether	C2H3F3O	421-14-7		{{#tag:ref	group=lower-alpha}}
HCC	R-	[1,2-dichloroethane](1-2-dichloroethane)	C2H4Cl2	107-06-2
HCC	R-a	[1,1-dichloroethane](1-1-dichloroethane)	C2H4Cl2	75-34-3
HCFC	R-	[1-chloro-2-fluoroethane](1-chloro-2-fluoroethane)	C2H4ClF	762-50-5
HCFC	R-a	[1-chloro-1-fluoroethane](1-chloro-1-fluoroethane)	C2H4ClF	1615-75-4
HFC	R-	[1,2-difluoroethane](1-2-difluoroethane)	C2H4F2	624-72-6		{{#tag:ref	group=lower-alpha}}
HFC	R-a	[1,1-difluoroethane](1-1-difluoroethane)	C2H4F2	75-37-6				A2
HCC	R-	chloroethane (ethyl chloride)	C2H5Cl	75-00-3
HFC	R-	fluoroethane	C2H5F	353-36-6		{{#tag:ref	group=lower-alpha}}
HC	R-	ethane	C2H6 or CH3CH3	74-84-0	days		group=lower-alpha}}	–	A3
HC	R-E170	dimethyl ether	CH3OCH3	115-10-6			group=lower-alpha}}		A3
CFC	R-	[1,1,1,2,2,3,3-heptachloro-3-fluoropropane](1-1-1-2-2-3-3-heptachloro-3-fluoropropane)	C3FCl7	422-78-6
CFC	R-	hexachlorodifluoropropane	C3F2Cl6	134452-44-1
CFC	R-	[1,1,1,3,3-pentachloro-2,2,3-trifluoropropane](1-1-1-3-3-pentachloro-2-2-3-trifluoropropane)	C3F3Cl5	2354-06-5
CFC	R-	[1,2,2,3-tetrachloro-1,1,3,3-tetrafluoropropane](1-2-2-3-tetrachloro-1-1-3-3-tetrafluoropropane)	C3F4Cl4	2268-46-4
CFC	R-	[1,1,1-trichloro-2,2,3,3,3-pentafluoropropane](1-1-1-trichloro-2-2-3-3-3-pentafluoropropane)	C3F5Cl3	4259-43-2
CFC	R-	[1,2-dichloro-1,1,2,3,3,3-hexafluoropropane](1-2-dichloro-1-1-2-3-3-3-hexafluoropropane)	C3F6Cl2	661-97-2
CFC	R-ca	[1,3-dichloro-1,1,2,2,3,3-hexafluoropropane](1-3-dichloro-1-1-2-2-3-3-hexafluoropropane)	C3F6Cl2	662-01-1		{{#tag:ref	group=lower-alpha}}
CFC	R-	[1-chloro-1,1,2,2,3,3,3-heptafluoropropane](1-chloro-1-1-2-2-3-3-3-heptafluoropropane)	C3F7Cl	422-86-6
CFC	R-ba	[2-chloro-1,1,1,2,3,3,3-heptafluoropropane](2-chloro-1-1-1-2-3-3-3-heptafluoropropane)	C3F7Cl	76-18-6		{{#tag:ref	group=lower-alpha}}
PFC	R-	octafluoropropane	C3F8	76-19-7				A1
HCFC	R-	[1,1,1,2,2,3-hexachloro-3-fluoropropane](1-1-1-2-2-3-hexachloro-3-fluoropropane)	C3HFCl6	422-26-4		0.015–0.07
HCFC	R-	pentachlorodifluoropropane	C3HF2Cl5	134237-36-8		0.01–0.09{{#tag:ref	group=lower-alpha}}
HCFC	R-c	[1,1,1,3,3-pentachloro-2,2-difluoropropane](1-1-1-3-3-pentachloro-2-2-difluoropropane)	C3HF2Cl5	422-49-1		0.01–0.09
HCFC	R-	tetrachlorotrifluoropropane	C3HF3Cl4	134237-37-9		0.01–0.08{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[1,1,3,3-tetrachloro-1,2,2-trifluoropropane](1-1-3-3-tetrachloro-1-2-2-trifluoropropane)	C3HF3Cl4	422-52-6		0.01–0.08
HCFC	R-cb	[1,1,1,3-tetrachloro-2,2,3-trifluoropropane](1-1-1-3-tetrachloro-2-2-3-trifluoropropane)	C3HF3Cl4	422-50-4		0.01–0.08{{#tag:ref	group=lower-alpha}}
HCFC	R-	trichlorotetrafluoropropane	C3HF4Cl3	134237-38-0		0.01–0.09{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[1,3,3-trichloro-1,1,2,2-tetrafluoropropane](1-3-3-trichloro-1-1-2-2-tetrafluoropropane)	C3HF4Cl3	422-54-8		0.01–0.09
HCFC	R-cb	[1,1,3-trichloro-1,2,2,3-tetrafluoropropane](1-1-3-trichloro-1-2-2-3-tetrafluoropropane)	C3HF4Cl3	422-53-7		0.01–0.09{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1,1,1-trichloro-2,2,3,3-tetrafluoropropane](1-1-1-trichloro-2-2-3-3-tetrafluoropropane)	C3HF4Cl3	422-51-5		0.01–0.09{{#tag:ref	group=lower-alpha}}
HCFC	R-	dichloropentafluoropropane	C3HF5Cl2	127564-92-5		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-aa	[2,2-dichloro-1,1,1,3,3-pentafluoropropane](2-2-dichloro-1-1-1-3-3-pentafluoropropane)	C3HF5Cl2	128903-21-9		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-ba	[2,3-dichloro-1,1,1,2,3-pentafluoropropane](2-3-dichloro-1-1-1-2-3-pentafluoropropane)	C3HF5Cl2	422-48-0		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-bb	[1,2-dichloro-1,1,2,3,3-pentafluoropropane](1-2-dichloro-1-1-2-3-3-pentafluoropropane)	C3HF5Cl2	422-44-6		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[3,3-dichloro-1,1,1,2,2-pentafluoropropane](3-3-dichloro-1-1-1-2-2-pentafluoropropane)	C3HF5Cl2	422-56-0
HCFC	R-cb	[1,3-dichloro-1,1,2,2,3-pentafluoropropane](1-3-dichloro-1-1-2-2-3-pentafluoropropane)	C3HF5Cl2	507-55-1
HCFC	R-cc	[1,1-dichloro-1,2,2,3,3-pentafluoropropane](1-1-dichloro-1-2-2-3-3-pentafluoropropane)	C3HF5Cl2	13474-88-9		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[1,2-dichloro-1,1,3,3,3-pentafluoropropane](1-2-dichloro-1-1-3-3-3-pentafluoropropane)	C3HF5Cl2	431-86-7		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-ea	[1,3-dichloro-1,1,2,3,3-pentafluoropropane](1-3-dichloro-1-1-2-3-3-pentafluoropropane)	C3HF5Cl2	136013-79-1		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-eb	[1,1-dichloro-1,2,3,3,3-pentafluoropropane](1-1-dichloro-1-2-3-3-3-pentafluoropropane)	C3HF5Cl2	111512-56-2		0.01–0.05{{#tag:ref	group=lower-alpha}}
HCFC	R-	chlorohexafluoropropane	C3HF6Cl	134308-72-8		0.02–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-ba	[2-chloro-1,1,1,2,3,3-hexafluoropropane](2-chloro-1-1-1-2-3-3-hexafluoropropane)	C3HF6Cl	51346-64-6		0.02–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[3-chloro-1,1,1,2,2,3-hexafluoropropane](3-chloro-1-1-1-2-2-3-hexafluoropropane)	C3HF6Cl	422-57-1		0.02–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1-chloro-1,1,2,2,3,3-hexafluoropropane](1-chloro-1-1-2-2-3-3-hexafluoropropane)	C3HF6Cl	422-55-9		0.02–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[2-chloro-1,1,1,3,3,3-hexafluoropropane](2-chloro-1-1-1-3-3-3-hexafluoropropane)	C3HF6Cl	431-87-8		0.02–0.1
HCFC	R-ea	[1-chloro-1,1,2,3,3,3-hexafluoropropane](1-chloro-1-1-2-3-3-3-hexafluoropropane)	C3HF6Cl	359-58-0		0.02–0.1{{#tag:ref	group=lower-alpha}}
HFC	R-ca	[1,1,2,2,3,3,3-heptafluoropropane](1-1-2-2-3-3-3-heptafluoropropane)	C3HF7	2252-84-8		{{#tag:ref	group=lower-alpha}}
HFC	R-ca2	trifluoromethyl 1,1,2,2-tetrafluoroethyl ether	C3HF7O	2356-61-8		{{#tag:ref	group=lower-alpha}}
HFC	R-ea	[1,1,1,2,3,3,3-heptafluoropropane](1-1-1-2-3-3-3-heptafluoropropane)	C3HF7	431-89-0				A1
HFC	R-me	trifluoromethyl 1,2,2,2-tetrafluoroethyl ether	C3HF7O	2356-62-9		{{#tag:ref	group=lower-alpha}}
HCFC	R-	pentachlorofluoropropane	C3H2FCl5	134190-48-0		0.05–0.09
HCFC	R-	tetrachlorodifluoropropane	C3H2F2Cl4	134237-39-1		0.008–0.1
HCFC	R-ca	[1,1,3,3-tetrachloro-2,2-difluoropropane](1-1-3-3-tetrachloro-2-2-difluoropropane)	C3H2F2Cl4	1112-14-7		0.008–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1,1,1,3-tetrachloro-2,2-difluoropropane](1-1-1-3-tetrachloro-2-2-difluoropropane)	C3H2F2Cl4	677-54-3		0.008–0.1{{#tag:ref	group=lower-alpha}}
HCFC	R-	trichlorotrifluoropropane	C3H2F3Cl3	134237-40-4		0.007–0.23
HCFC	R-ca	[1,1,3-trichloro-2,2,3-trifluoropropane](1-1-3-trichloro-2-2-3-trifluoropropane)	C3H2F3Cl3	131221-36-8		0.007–0.23{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1,1,3-trichloro-1,2,2-trifluoropropane](1-1-3-trichloro-1-2-2-trifluoropropane)	C3H2F3Cl3	421-99-8		0.007–0.23{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1,1,1-trichloro-2,2,3-trifluoropropane](1-1-1-trichloro-2-2-3-trifluoropropane)	C3H2F3Cl3	131211-71-7		0.007–0.23{{#tag:ref	group=lower-alpha}}
HCFC	R-	dichlorotetrafluoropropane	C3H2F4Cl2	127564-83-4		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-aa	[2,2-dichloro-1,1,3,3-tetrafluoropropane](2-2-dichloro-1-1-3-3-tetrafluoropropane)	C3H2F4Cl2	17705-30-5		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-ab	[2,2-dichloro-1,1,1,3-tetrafluoropropane](2-2-dichloro-1-1-1-3-tetrafluoropropane)	C3H2F4Cl2	149329-24-8		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-ba	[1,2-dichloro-1,2,3,3-tetrafluoropropane](1-2-dichloro-1-2-3-3-tetrafluoropropane)	C3H2F4Cl2	425-94-5		0.01–0.28
HCFC	R-bb	[2,3-dichloro-1,1,1,2-tetrafluoropropane](2-3-dichloro-1-1-1-2-tetrafluoropropane)	C3H2F4Cl2	149329-25-9		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-bc	[1,2-dichloro-1,1,2,3-tetrafluoropropane](1-2-dichloro-1-1-2-3-tetrafluoropropane)	C3H2F4Cl2	149329-26-0		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[1,3-dichloro-1,2,2,3-tetrafluoropropane](1-3-dichloro-1-2-2-3-tetrafluoropropane)	C3H2F4Cl2	70341-81-0		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1,1-dichloro-2,2,3,3-tetrafluoropropane](1-1-dichloro-2-2-3-3-tetrafluoropropane)	C3H2F4Cl2	4071-01-6		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1,3-dichloro-1,1,2,2-tetrafluoropropane](1-3-dichloro-1-1-2-2-tetrafluoropropane)	C3H2F4Cl2	422-00-4		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-cd	[1,1-dichloro-1,2,2,3-tetrafluoropropane](1-1-dichloro-1-2-2-3-tetrafluoropropane)	C3H2F4Cl2	70192-63-1		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[2,3-dichloro-1,1,1,3-tetrafluoropropane](2-3-dichloro-1-1-1-3-tetrafluoropropane)	C3H2F4Cl2	146916-90-7		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-fa	[1,3-dichloro-1,1,3,3-tetrafluoropropane](1-3-dichloro-1-1-3-3-tetrafluoropropane)	C3H2F4Cl2	76140-39-1		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-fb	[1,1-dichloro-1,3,3,3-tetrafluoropropane](1-1-dichloro-1-3-3-3-tetrafluoropropane)	C3H2F4Cl2	64712-27-2		0.01–0.28{{#tag:ref	group=lower-alpha}}
HCFC	R-	chloropentafluoropropane	C3H2F5Cl	134237-41-5		0.03–0.52
HCFC	R-ca	[1-chloro-1,2,2,3,3-pentafluoropropane](1-chloro-1-2-2-3-3-pentafluoropropane)	C3H2F5Cl	28103-66-4		0.03–0.52{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[3-chloro-1,1,1,2,3-pentafluoropropane](3-chloro-1-1-1-2-3-pentafluoropropane)	C3H2F5Cl	422-02-6		0.03–0.52{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1-chloro-1,1,2,2,3-pentafluoropropane](1-chloro-1-1-2-2-3-pentafluoropropane)	C3H2F5Cl	679-99-2		0.03–0.52{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[2-chloro-1,1,1,3,3-pentafluoropropane](2-chloro-1-1-1-3-3-pentafluoropropane)	C3H2F5Cl	134251-06-2		0.03–0.52{{#tag:ref	group=lower-alpha}}
HCFC	R-fa	[1-chloro-1,1,3,3,3-pentafluoropropane](1-chloro-1-1-3-3-3-pentafluoropropane)	C3H2F5Cl	677-55-4		0.03–0.52{{#tag:ref	group=lower-alpha}}
HFC	R-cb	[1,1,1,2,2,3-hexafluoropropane](1-1-1-2-2-3-hexafluoropropane)	C3H2F6	677-56-5		{{#tag:ref	group=lower-alpha}}
HFC	R-ea	[1,1,1,2,3,3-hexafluoropropane](1-1-1-2-3-3-hexafluoropropane)	C3H2F6	431-63-0
HFC	R-fa	[1,1,1,3,3,3-hexafluoropropane](1-1-1-3-3-3-hexafluoropropane)	C3H2F6	690-39-1				A1				±.35
HFC	R-me	[1,2,2,2-tetrafluoroethyl difluoromethyl ether](1-2-2-2-tetrafluoroethyl-difluoromethyl-ether)	C3H2F6O	57041-67-5		{{#tag:ref	group=lower-alpha}}
HCFC	R-	tetrachlorofluoropropane	C3H3FCl4	134190-49-1		0.004–0.09
HCFC	R-	trichlorodifluoropropane	C3H3F2Cl3	134237-42-6		0.005–0.13
HCFC	R-	dichlorotrifluoropropane	C3H3F3Cl2	134237-43-7		0.007–0.12
HCFC	R-ca	[1,3-dichloro-1,2,2-trifluoropropane](1-3-dichloro-1-2-2-trifluoropropane)	C3H3F3Cl2	67406-68-2		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1,1-dichloro-2,2,3-trifluoropropane](1-1-dichloro-2-2-3-trifluoropropane)	C3H3F3Cl2	70192-70-0		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1,1-dichloro-1,2,2-trifluoropropane](1-1-dichloro-1-2-2-trifluoropropane)	C3H3F3Cl2	7125-99-7		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[2,3-dichloro-1,1,1-trifluoropropane](2-3-dichloro-1-1-1-trifluoropropane)	C3H3F3Cl2	338-75-0		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-ea	[1,3-dichloro-1,2,3-trifluoropropane](1-3-dichloro-1-2-3-trifluoropropane)	C3H3F3Cl2	151771-08-3		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-ec	[1,3-dichloro-1,1,2-trifluoropropane](1-3-dichloro-1-1-2-trifluoropropane)	C3H3F3Cl2	149329-27-1		0.007–0.12{{#tag:ref	group=lower-alpha}}
HCFC	R-	chlorotetrafluoropropane	C3H3F4Cl	134190-50-4		0.009–0.14
HCFC	R-ba	[2-chloro-1,2,3,3-tetrafluoropropane](2-chloro-1-2-3-3-tetrafluoropropane)	C3H3F4Cl	149329-28-2		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-bb	[2-chloro-1,1,1,2-tetrafluoropropane](2-chloro-1-1-1-2-tetrafluoropropane)	C3H3F4Cl	421-73-8		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[3-chloro-1,1,2,2-tetrafluoropropane](3-chloro-1-1-2-2-tetrafluoropropane)	C3H3F4Cl	679-85-6		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1-chloro-1,2,2,3-tetrafluoropropane](1-chloro-1-2-2-3-tetrafluoropropane)	C3H3F4Cl	67406-66-0		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-cc	[1-chloro-1,1,2,2-tetrafluoropropane](1-chloro-1-1-2-2-tetrafluoropropane)	C3H3F4Cl	421-75-0		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-da	[2-chloro-1,1,3,3-tetrafluoropropane](2-chloro-1-1-3-3-tetrafluoropropane)	C3H3F4Cl	19041-02-2		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-db	[2-chloro-1,1,1,3-tetrafluoropropane](2-chloro-1-1-1-3-tetrafluoropropane)	C3H3F4Cl	117970-90-8		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-ea	[3-chloro-1,1,2,3-tetrafluoropropane](3-chloro-1-1-2-3-tetrafluoropropane)	C3H3F4Cl			0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-eb	[3-chloro-1,1,1,2-tetrafluoropropane](3-chloro-1-1-1-2-tetrafluoropropane)	C3H3F4Cl	151771-09-4		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-ec	[1-chloro-1,1,2,3-tetrafluoropropane](1-chloro-1-1-2-3-tetrafluoropropane)	C3H3F4Cl	149448-09-9		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-fa	[3-chloro-1,1,1,3-tetrafluoropropane](3-chloro-1-1-1-3-tetrafluoropropane)	C3H3F4Cl	149329-29-3		0.009–0.14{{#tag:ref	group=lower-alpha}}
HCFC	R-fb	[1-chloro-1,1,3,3-tetrafluoropropane](1-chloro-1-1-3-3-tetrafluoropropane)	C3H3F4Cl	2730-64-5		0.009–0.14{{#tag:ref	group=lower-alpha}}
HFC	R-ca	[1,1,2,2,3-pentafluoropropane](1-1-2-2-3-pentafluoropropane)	C3H3F5	679-86-7
HFC	R-cb	pentafluoropropane	C3H3F5	1814-88-6		{{#tag:ref	group=lower-alpha}}
HFC	R-ea	[1,1,2,3,3-pentafluoropropane](1-1-2-3-3-pentafluoropropane)	C3H3F5	24270-66-4		{{#tag:ref	group=lower-alpha}}
HFC	R-eb	[1,1,1,2,3-pentafluoropropane](1-1-1-2-3-pentafluoropropane)	C3H3F5	431-31-2		{{#tag:ref	group=lower-alpha}}
HFC	R-fa	1,1,1,3,3-pentafluoropropane	C3H3F5	460-73-1				B1
HFC	R-mc	methyl pentafluoroethyl ether	C3H3F5O	22410-44-2		{{#tag:ref	group=lower-alpha}}
HFC	R-mf	difluoromethyl 2,2,2-trifluoroethyl ether	C3H3F5O	1885-48-9		{{#tag:ref	group=lower-alpha}}
HFC	R-qc	difluoromethyl 1,1,2-trifluoroethyl ether	C3H3F5O	69948-24-9		{{#tag:ref	group=lower-alpha}}
HCFC	R-	trichlorofluoropropane	C3H4FCl3	134190-51-5		0.001–0.01
HCFC	R-	dichlorodifluoropropane	C3H4F2Cl2	134190-52-6		0.005–0.04
HCFC	R-ca	[1,3-dichloro-2,2-difluoropropane](1-3-dichloro-2-2-difluoropropane)	C3H4F2Cl2	1112-36-3		0.005–0.04{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1,1-dichloro-2,2-difluoropropane](1-1-dichloro-2-2-difluoropropane)	C3H4F2Cl2	1112-01-2		0.005–0.04{{#tag:ref	group=lower-alpha}}
HCFC	R-dc	[1,2-dichloro-1,1-difluoropropane](1-2-dichloro-1-1-difluoropropane)	C3H4F2Cl2	7126-15-0		0.005–0.04{{#tag:ref	group=lower-alpha}}
HCFC	R-ec	[1,1-dichloro-1,2-difluoropropane](1-1-dichloro-1-2-difluoropropane)	C3H4F2Cl2	151771-10-7		0.005–0.04{{#tag:ref	group=lower-alpha}}
HCFC	R-	chlorotrifluoropropane	C3H4F3Cl	134237-44-8		0.003–0.03
HCFC	R-ba	[2-chloro-1,2,3-trifluoropropane](2-chloro-1-2-3-trifluoropropane)	C3H4F3Cl	151771-11-8		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-bb	[2-chloro-1,1,2-trifluoropropane](2-chloro-1-1-2-trifluoropropane)	C3H4F3Cl	69202-10-4		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-ca	[1-chloro-2,2,3-trifluoropropane](1-chloro-2-2-3-trifluoropropane)	C3H4F3Cl	56758-54-4		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-cb	[1-chloro-1,2,2-trifluoropropane](1-chloro-1-2-2-trifluoropropane)	C3H4F3Cl	70192-76-6		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-ea	[3-chloro-1,1,2-trifluoropropane](3-chloro-1-1-2-trifluoropropane)	C3H4F3Cl	121612-65-5		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-eb	[1-chloro-1,2,3-trifluoropropane](1-chloro-1-2-3-trifluoropropane)	C3H4F3Cl	151771-12-9		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-ec	[1-chloro-1,1,2-trifluoropropane](1-chloro-1-1-2-trifluoropropane)	C3H4F3Cl	134251-05-1		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-fa	[3-chloro-1,3,3-trifluoropropane](3-chloro-1-3-3-trifluoropropane)	C3H4F3Cl			0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-fb	[3-chloro-1,1,1-trifluoropropane](3-chloro-1-1-1-trifluoropropane)	C3H4F3Cl	460-35-5		0.003–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-fc	[1-chloro-1,1,3-trifluoropropane](1-chloro-1-1-3-trifluoropropane)	C3H4F3Cl	83124-56-5		0.003–0.03{{#tag:ref	group=lower-alpha}}
HFC	R-cb	[1,1,2,2-tetrafluoropropane](1-1-2-2-tetrafluoropropane)	C3H4F4	40723-63-5		{{#tag:ref	group=lower-alpha}}
HFC	R-pc	methyl 1,1,2,2-tetrafluoroethyl ether	C3H4F4O	425-88-7		{{#tag:ref	group=lower-alpha}}
HCFC	R-	dichlorofluoropropane	C3H5FCl2	134237-45-9		0.002–0.02{{#tag:ref	group=lower-alpha}}
HCFC	R-ba	[1,2-dichloro-2-fluoropropane](1-2-dichloro-2-fluoropropane)	C3H5FCl2	420-97-3		0.002–0.02
HCFC	R-	chlorodifluoropropane	C3H5F2Cl	134190-53-7		0.002–0.02
HCFC	R-ca	[1-chloro-2,2-difluoropropane](1-chloro-2-2-difluoropropane)	C3H5F2Cl	420-99-5		0.002–0.02{{#tag:ref	group=lower-alpha}}
HCFC	R-fa	[3-chloro-1,1-difluoropropane](3-chloro-1-1-difluoropropane)	C3H5F2Cl	83124-57-6		0.002–0.02{{#tag:ref	group=lower-alpha}}
HCFC	R-fb	[1-chloro-1,3-difluoropropane](1-chloro-1-3-difluoropropane)	C3H5F2Cl	151771-13-0		0.002–0.02{{#tag:ref	group=lower-alpha}}
HFC	R-	trifluoropropane	C3H5F3	94458-05-6		{{#tag:ref	group=lower-alpha}}
HCFC	R-	chlorofluoropropane	C3H6FCl	134190-54-8		0.001–0.03
HCFC	R-b	[2-chloro-2-fluoropropane](2-chloro-2-fluoropropane)	C3H6FCl	420-44-0		0.001–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-d	[2-chloro-1-fluoropropane](2-chloro-1-fluoropropane)	C3H6FCl	20372-78-5		0.001–0.03{{#tag:ref	group=lower-alpha}}
HCFC	R-fb	[1-chloro-1-fluoropropane](1-chloro-1-fluoropropane)	C3H6FCl	430-55-7		0.001–0.03{{#tag:ref	group=lower-alpha}}
HFC	R-	difluoropropane	C3H6F2	94458-04-5		{{#tag:ref	group=lower-alpha}}
HFC	R-	fluoropropane	C3H7F	106857-11-8		{{#tag:ref	group=lower-alpha}}
HC	R-	propane	C3H8 or CH3CH2CH3	74-98-6	days		group=lower-alpha}}	–	A3				±.2
CFC	R-C316	dichlorohexafluorocyclobutane	C4Cl2F6	356-18-3	doi = 10.1021/jp407823k	pmid = 24079521	title = 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	journal = The Journal of Physical Chemistry A	volume = 117	issue = 43	pages = 11049–11065	year = 2013	last1 = Papadimitriou	first1 = Vassileios C.	last2 = McGillen	first2 = Max R.	last3 = Smith	first3 = Shona C.	last4 = Jubb	first4 = Aaron M.	last5 = Portmann	first5 = Robert W.	last6 = Hall	first6 = Bradley D.	last7 = Fleming	first7 = Eric L.	last8 = Jackman	first8 = Charles H.	last9 = Burkholder	first9 = James B.	bibcode = 2013JPCA..11711049P	hdl = 2060/20140012685	s2cid = 25162740	hdl-access = free }}
CFC	R-C317	chloroheptafluorocyclobutane	C4ClF7	377-41-3
PFC	R-C318	octafluorocyclobutane (perfluorocyclobutane)	C4F8 or -(CF2)4-	115-25-3				A1
PFC	R-3-1-10	decafluorobutane (perfluorobutane)	C4F10	355-25-9
HFC	R-ccb	[1,1,1,2,2,3,3,4,4-nonafluorobutane](1-1-1-2-2-3-3-4-4-nonafluorobutane)	C4HF9	375-17-7		{{#tag:ref	group=lower-alpha}}
HFC	R-eea	1,1,1,2,3,4,4,4-octafluorobutane	C4H2F8	75995-72-1		{{#tag:ref	group=lower-alpha}}
HFC	R-ccd	[1,1,1,2,2,3,3-heptafluorobutane](1-1-1-2-2-3-3-heptafluorobutane)	C4H3F7	662-00-0		{{#tag:ref	group=lower-alpha}}
HFC	R-mcc	perfluoropropyl methyl ether	C4H3F7O	375-03-1		{{#tag:ref	group=lower-alpha}}
HFC	R-mmy	perfluoroisopropyl methyl ether	C4H3F7O	22052-84-2		{{#tag:ref	group=lower-alpha}}									R-356mcf
R-356mffm --
HFC	R-mfc	[1,1,1,3,3-pentafluorobutane](1-1-1-3-3-pentafluorobutane)	C4H5F5	406-58-6
PFC	R-4-1-12	dodecafluoropentane (perfluoropentane)	C5F12	678-26-2
PFC	R-5-1-14	tetradecafluorohexane (perfluorohexane)	C6F14	355-42-0
CFC	R-	R-12/114(50/50 wt%) OR
(60/40)(must be specified)	50% CCl2F250% C2F4Cl2 OR
60% CCl2F240% C2F4Cl2		OR

A1
1000 A1
160
170
HCFC	R-A	R-22/152a/124 (53±2/13+.5,-1.5/34±1)	53±2% CHClF213+.5,-1.5% C2H4F234±1% C2HF4Cl	MP-39				A1				−34.4/−28.8
HCFC	R-B	R-22/152a/124 (61±2/11+.5,-1.5/28±1)	61±2% CHClF211+.5,-1.5% C2H4F228±1% C2HF4Cl	MP-66				A1				−35.7/−30.8
HCFC	R-C	R-22/152a/124 (33±2/15+.5,-1.5/52±1)	33±2% CHClF215+.5,-1.5% C2H4F252±1% C2HF4Cl	MP-52				A1				−30.5/−23.8
HCFC	R-A	R-125/290/22 (60±2/2±1/38±2)	60±2% C2HF52±1% C3H838±2% CHClF2	HP-80	?			A1				−49.2/−47.0
HCFC	R-B	R-125/290/22 (38±2/2±1/60±2)	38±2% C2HF52±1% C3H860±2% CHClF2	HP-81	?			A1				−47.2/−44.9
HCFC	R-A	R-290/22/218 (5+.2,-2/75±2/20±0)	5+.2,-2% C3H875±2% CHClF220±0% C3F8	ISCEON 69-S	?			A2				−44.0/−42.3
HCFC	R-B	R-290/22/218 (5+.2,-2/56±2/39±0)	5+.2,-2% C3H856±2% CHClF239±0% C3F8	ISCEON 69-L	?			A1				−43.8/−42.3
HFC	R-A	R-125/143a/134a (44±2/52±1/4±2)	44±2% C2HF552±1% C2H3F34±2% C2H2F4	HP-62, FX-70				A1				−46.6/−45.8
HCFC	R-A	R-22/152a/142b/C318 (45±0/7±1/5.5±1/42.5±2)	45±0% CHClF27±1% C2H4F25.5±1% C2H3F2Cl42.5±2% C4F8	GREENCOOL G2015				A1?				−32.9/−24.5
HCFC	R-A	R-22/600a/142b (55±2/4±1/41±0)	55±2% CHClF24±1% C4H1041±0% C2H3F2Cl	GHG	?			A2				−32.7/−23.5
HCFC	R-B	R-22/600a/142b (65±2/4±1/31±0)	65±2% CHClF24±1% C4H1031±0% C2H3F2Cl	GHG-HP	?			? A2?	?	?
HFC	R-A	R-32/125/134a (20±2/40±2/40±2)	20±2% CH2F240±2% C2HF540±2% C2H2F4	Klea 60				A1				−45.2/−38.7
HFC	R-B	R-32/125/134a (10±2/70±2/20±2)	10±2% CH2F270±2% C2HF520±2% C2H2F4	Klea 61				A1				−46.8/−42.4
HFC	R-C	R-32/125/134a (23±2/25±2/52±2)	23±2% CH2F225±2% C2HF552±2% C2H2F4	Klea 66, AC9000				A1				−43.8/−36.7
HFC	R-D	R-32/125/134a (15±2/15±2/70±2)	15±2% CH2F215±2% C2HF570±2% C2H2F4					A1				−39.4/−32.7
HFC	R-E	R-32/125/134a (25±2/15±2/60±2)	25±2% CH2F215±2% C2HF560±2% C2H2F4					A1				−42.8/−35.6
HFC	R-F	R-32/125/134a (30±2/30±2/40±2)	30±2% CH2F230±2% C2HF540±2% C2H2F4	Genetron Performax LT				A1				−46.1/−39.7
HCFC	R-A	R-125/143a/22 (7±2/46±1/47±2)	7±2% C2HF546±1% C2H3F347±2% CHClF2	FX-10				A1				−45.5/−45.0
HCFC	R-A	R-22/124/142b (60±2/25±2/15±1)	60±2% CHClF225±2% C2HF4Cl15±1% C2H3F2Cl	FX-56				A1				−35.4/−27.5
HCFC	R-B	R-22/124/142b (65±2/25±2/10±1)	65±2% CHClF225±2% C2HF4Cl10±1% C2H3F2Cl	FX-57				A1				−36.5/−29.7
HFC	R-A	R-32/125 (50+0.5,–1.5/50+1.5,–0.5)	50+0.5,–1.5% CH2F250+1.5,–.5% CHF2CF3	AZ-20, Puron, Suva 9100				A1				−51.6/−51.5
HFC	R-B	R-32/125 (45±1/55±1)	45±1% CH2F255±1% CHF2CF3	AC9100				? A1				−51.5/−51.4
HCFO	R-A	R-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% C2H4F2	GREENCOOL G2018a				A2				−39.7/−37.2
HCFO	R-B	R-1270/22/152a (3+0,–1/94+2,–0/3+0,–1)	3+0,–1% C3H694+2,–0% CHClF23+0,–1% C2H4F2	GREENCOOL G2018b				A2				−41.6/−41.3
HCFO	R-C	R-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% C2H4F2	GREENCOOL G2018c				? A2?	?	?
HCFC	R-A	R-22/218/142b (70±2/5±2/25±1)	70±2% CHClF25±2% C3F825±1% C2H3F2Cl	Arcton TP5R				A2				−36.4/−28.8
HFC	R-A	R-218/134a/600a (9±1/88±2/3+0,–1)	9±1% C3F888±2% C2H2F43+0,–1% C4H10	ISCEON 49	?			A2				−29.3/−27.6
HCFC	R-A	R-22/124/600a/142b (51±2/28.5±2/4±.5/16.5+0.5,–1)	51±2% CHClF228.5±2% C2HF4Cl4±.5% C4H1016.5+0.5,–1% C2H3F2Cl	GHG-X4, Autofrost, Chill-It	?			A1				−34.0/−25.8
HCFC	R-B	R-22/124/600a/142b (50±2/39±2/1.5±0.5/9.5+0.5,–1)	50±2% CHClF239±2% C2HF4Cl1.5±.5% C4H109.5+0.5,–1% C2H3F2Cl	Hot Shot, Kar Kool	?			A1				−34.4/−26.1
HCFC	R-A	R-22/152a (82±1/18±1)	82±1% CHClF218±1% C2H4F2					A2				−37.5/−34.7
HCFC	R-B	R-22/152a (25±1/75±1)	25±1% CHClF275±1% C2H4F2					A2				−23.4/−21.8
HCFC	R-A	R-134a/124/600 (59+0.5,–1/39.5+1,–0.5/1.5+1,–0.2)	59+0.5,-1% C2H2F439.5+1,–.5% C2HF4Cl1.5+1,–.2% C4H10	FRIGC (FR-12)	?			A1				−38.0/−32.9
HFC	R-A	R-125/134a/600 (46.6±1.1/50±1/3.4+0.1,–0.4)	46.6±1.1% C2HF550±1% C2H2F43.4+0.1,–.4% C4H10	ISCEON 59, NU-22	?			A1				−41.2/−40.1
HFC	R-B	R-125/134a/600 (79±1/18.3±1/2.7+0.1,–0.5)	79±1% C2HF518.3±1% C2H2F42.7+0.1,–0.5% C4H10		?			A1				−44.9/−41.5
HCFC	R-A	R-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
HFC	R-A	R-125/134a/E170 (77±1/19±1/4±1)	77±1% C2HF519±1% C2H2F44±1% C2H6O					A2				−25.0/−24.2
HCFC	R-A	R-134a/142b (88+1,–0/12+0,–1)	88+1,–0% C2H2F412+0,–1% C2H3F2Cl	Choice Refrigerant				A1				−34.4/−28.8
HFC	R-A	R-125/134a (58±1/42±1)	58±1% C2HF542±1% C2H2F4	Choice R421A				A1
HFC	R-B	R-125/134a (85±1/15±1)	85±1% C2HF515±1% C2H2F4	Choice 421B				A1
HFC	R-A	R-125/134a/600a (85.1±1/11.5±1/3.4+0.1,–0.4)	85.1±1% C2HF511.5±1% C2H2F43.4+0.1,–0.4% C4H10	ISCEON 79	?			A1
HFC	R-B (NU-22B)	R-125/134a/600a (55±1/42±1/3+0.1,–0.5)	55±1% C2HF542±1% C2H2F43+0.1,–0.5% C4H10	ICOR XAC1	?			A1
HFC	R-C	R-125/134a/600a (82±1/15±1/3+.1,–.5)	82±1% C2HF515±1% C2H2F43+.1,–.5% C4H10	ICOR XLT1	?			A1
HFC	R-D	R-125/134a/600a (65.1+0.9,–1.1/31.5±1/3.4+0.1,–.4)	65.1+0.9,–1.1% C2HF531.5±1% C2H2F43.4+.1,–.4% C4H10	ISCEON MO29	?			A1
HFC	R-A	R-134a/227ea (52.5±1/47.5±1)	52.5±1% C2H2F447.5±1% C3HF7					A1
HFC	R-A	R-125/134a/600a/600/601a (50.5±1/47±1/0.9+.1,–0.2/1+0.1,+0.2/.6+0.1,–0.2)	50.5±1% C2HF547±1% C2H2F41.9+0.3,–0.1% C4H100.6+0.1,–0.2% C5H12	RS-44 (new comp.)	?		?	A1
HFC	R-A	R-32/134a/227ea (18.5±.5/69.5±.5/12±.5)	18.5±.5% CH2F269.5±.5% C2H2F412±.5% C3HF7					A1
HFC	R-A	R-125/134a/600/601a (5.1±1/93±1/1.3+0.1,–0.2/0.6+0.1,–0.2)	5.1±1% C2HF593±1% C2H2F41.3+.01,–0.2% C4H100.6+0.1,–.2% C5H12	RS-24 (new comp.)	?		?	A1
HFC	R-A	R-32/125/143a/134a (15±2/25±2/10±2/50±2)	15±2% CH2F225±2% C2HF510±2% C2H3F350±2% C2H2F4	Forane 427A				A1
HFC	R-A	R-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% C4H10	RS-52	?			A1
HFC	R-A	R-E170/152a/600a (60±1/10±1/30±1)	60±1% C2H6O10±1% C2H4F230±1% C4H10		?			A3
HFC	R-A	R-152a/600a (76±1/24±1)	76±1% C2H4F224±1% C4H10		?			A3
HFC	R-A	R-290/152a (71±1/29±1)	71±1% C3H829±1% C2H4F2		?			A3
HO	R-A	R-1270/E170 (80±1/20±1)	80±1% C3H620±1% C2H6O		?			A3
HO	R-A	R-1270/290 (30±1/70±1)	30±1% C3H670±1% C3H8		± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}		A3				−44.6/−44.2?
HO	R-B	R-1270/290 (5±1/95±1)	5±1% C3H695±1% C3H8		± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}		A3				−42.7/−42.5
HO	R-C	R-1270/290 (25±1/75±1)	25±1% C3H675±1% C3H8		± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}		A3				−44.3/−43.9
HFC	R-A	R-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% C4H10	RS-45	?			A1				−45.0/−42.3
HFC	R-A	R-E170/152a (80±1/20±1)	80±1% C2H6O20±1% C2H4F2					A3				−26.1/−25.9
HC	R-A	R-290/600a (56±1/44±1)	56±1% C3H844±1% C4H10		± 3{{#tag:ref	group=lower-alpha}}			A3				−34.3/−26.2
HC	R-B	R-290/600a (52±1/48±1)	52±1% C3H848±1% C4H10		± 3{{#tag:ref	group=lower-alpha}}			A3				−33.4/−25.0
HFC	R-A	R-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
HFC	R-A	R-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% C5H12	KDD5, ISCEON MO99	?		?	A1				−43.0/−36.4
HFC	R-A	R-32/125/600a (50±1/47±1/3±.5)	50±1% CH2F247±1% C2HF53±.5% C4H10		?			A2				−52.0/−51.8
HFC	R-A	R-290/134a/152a (.6±.1/1.6±.6/97.8±.5)	.6±.1% C3H81.6±.6% C2H2F497.8±.5% C2H4F2		?			A2				−25.5/−24.3
HC	R-A	R-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% C4H10	HCR-188C	± 3{{#tag:ref	group=lower-alpha}}			A3				−41.9/−20.4
HFC /	R-A	R-32/125/134a/1234ze/1234yf	26% CH2F2
26% C2HF5
21% C2H2F4	Solistice N-40		0	1273	A1			title=Solstice N40 TDS	url=https://www.honeywell-refrigerants.com/europe/wp-content/uploads/2015/03/Solstice-N40-TDS-141216-vF.pdf}}			4,660
HFO	R-A	R-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	url=https://www.forane.com/en/forane-refrigerants/our-products/product-viewer/Forane-449A-XP40/	title=Forane® 449A (XP40) Refrigerant – Product Information	publisher=Arkema	access-date=2020-10-14	archive-date=2020-10-16	archive-url=https://web.archive.org/web/20201016090957/https://www.forane.com/en/forane-refrigerants/our-products/product-viewer/Forane-449A-XP40/	url-status=dead }}		0		A1			87.2
HFO	R-452A	R-32/R-125/1234yf
(11%/59%/30%)	11% CH2F2
59% C2HF5
30% C3H2F4	Opteon™️ XP44, Solstice® R452A
HFO	R-B	R-32/R-125/1234yf
(67.0%/7.0%/26.0%)	67.0% CH2F2
7.0% C2HF5
26.0% C3H2F4	url=https://www.opteon.com/en/−/media/files/opteon/opteon-xl55-product-information.pdf	title=Opteon™ XL55 Refrigerant – Product Information	publisher=Chemours	access-date=2020-10-13 }} Solstice L41y		0		A2L			63.5	−50.9/−50.1		5,220
HFC	R-A	R-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	url=https://gas-servei.com/shop/docs/technical-data-sheet-r-453a-rs-70-gas-servei.pdf	title=Features and uses of RS-70	publisher=Gas Servei	access-date=2022-07-19}}		0		1000 A1			88.8			4,530
HFO	R-A	R-32/1234yf (35.0%/65.0%)	35.0% CH2F2
65.0% C3H2F4	url=https://www.opteon.com/en/−/media/files/opteon/opteon-xl40-pib-en.pdf	title=Opteon™ XL40 Refrigerant – Product Information	publisher=Chemours	access-date=2020-10-13 }}		0		A2L			80.5
HFO	R-B	R-32/1234yf (68.9%/31.1%)	68.9% CH2F2
31.1% C3H2F4	url=https://www.opteon.com/en/-/media/files/opteon/opteon-xl41-product-information.pdf	title=Opteon™ XL41 Refrigerant – Product Information	publisher=Chemours	access-date=2020-10-13}} Puron Advance		0		A2L			62.6
HFO	R-C	R-32/1234yf (21.5%/78.5%)	21.5% CH2F2
78.5% C3H2F4	url=https://www.opteon.com/en/−/media/files/opteon/opteon-xl20-pib-en.pdf	title=Opteon™ XL20 Refrigerant – Product Information	publisher=Chemours	access-date=2020-10-13 }}		0		A2L			90.8
HFO	R-A	R-1234yf/32/744 (75.5%/21.5%/3%)	21.5% CH2F2
75.5% C3H2F4
3% CO2	url=https://www.honeywell-refrigerants.com/europe/wp-content/uploads/2017/02/Honeywell-Solstice%C3%82%C2%AE-L40X-TDS_EN.pdf	title=Solstice® L40X (R-455A) European Refrigerants	website=www.honeywell-refrigerants.com	language=en-US	access-date=2018-09-24}}		0		A2L			87.5	−52.3/−39.4		4,660
HFO	R-A	R-32/134a/1234ze(E) (6.0%/45.0%/49.0%)	6.0% CH2F2
45.0% C2H2F4
49.0% C3H2F4			0	687
HFO	R-A	R-32/152a/1234yf
(18.0%/12.0%/70.0%)	18.0% CH2F2
12.0% C2H4F2
70.0% C3H2F4	url=https://ccacoalition.org/sites/default/files/2017_technology-airconditioning-workshop_SessionIIA_Karpman.pdf	title=Fluorinated alternatives in residential and light commercial applications – Forane Refrigerants	publisher=Arkema	access-date=2020-10-13	archive-date=2020-10-13	archive-url=https://web.archive.org/web/20201013232912/https://ccacoalition.org/sites/default/files/2017_technology-airconditioning-workshop_SessionIIA_Karpman.pdf	url-status=dead }}		0		A2L
HFC	R-A	R-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
HFO	R-A	R-32/1234yf(E)/1234ze(E) (68.0%/26.0%/6.0%)	68.0% CH2F2
26.0% C3H2F4
6.0% C3H2F4	Forane 459a		0	460
HFC/H	R-466A	R-32/125/13I1 (49/11.5/39.5)	49% CH2F2
11.5% C2HF5
39.5% CIF3	title=Solstice® N41 (R-466A)	url=https://advancedmaterials.honeywell.com/nz/en/products/all-refrigeration-and-heating-products/refrigeration-and-heating-products/hfo-blends/solstice-n41-r-466a	access-date=2024-03-17	website=advancedmaterials.honeywell.com	language=en-NZ}}		0	733	A1				−51.7	76.5	5144
HCFC	R-	R-12/152a (73.8/26.2)	73.8% CCl2F226.2% C2H4F2	Carrene #7				A1				−33/0
HCFC	R-	R-22/12 (75/25)	75% CHClF225% CCl2F2					A1				/−41
HCFC	R-	R-22/115 (48.8/51.2)	48.8% CHClF251.2% C2F5Cl					A1				/19
HCFC	R-	R-23/13 (40.1/59.9)	40.1% CHF359.9% CClF3					A1?	?	?		/88
HCFC	R-	R-32/115 (48.2/51.8)	48.2% CH2F251.8% C2F5Cl					A1?				/17
HCFC	R-	R-12/31 (78/22)	78% CCl2F222% CH2FCl		+		+	? B2?	?	?		/115
HCFC	R-	R-31/114 (55.1/44.9)	55.1% CH2FCl44.9% C2F4Cl2		+		+	? B2?	?	?		/18
HFC	R-[A]	R-125/143a (50/50)	50% C2HF550% C2H3F3	AZ-50				A1				/−40
HFC	R-[A]	R-23/116 (39/61)	39% CHF361% C2F6	Klea 5R3				A1				/−86
HFC	R-B	R-23/116 (46/54)	46% CHF354% C2F6	Suva 95				A1				-88.3/−45.6
HCFC	R-[A]	R-22/218 (44/56)	44% CHClF256% C3F8	Arcton TP5R2				A1				/0
HC	R-[A]	R-E170/600a (88±.5/12±.5)	88±.5% C2H6O12±.5% C4H10		?			A3				/−25.2
HC	R-[A]	R-290/E170 (95±1/5±1)	95±1% C3H85±1% C2H6O		?		group=lower-alpha}}		A3				/−20-40
HFO	R-A	R-1234yf/134a (56%/44%)	56% C3H2F4 44% C2H2F4					A1
HFO	R-A	R-1336mzz-Z/trans-[1,2-dichloroethene](1-2-dichloroethene)(t-DCE)(74.7%/25.3%)	74.7% C4H2F6 25.3% C2H2CL2					B1
HFO	R-B	R-1234ze/227ea
HC	R-	butane	C4H10 or CH3CH2CH2CH3	106-97-8	days		–	A3	?	?		±1
HC	R-a	isobutane	C4H10 or CH(CH3)2CH3	75-28-5	± 3{{#tag:ref	Most hydrocarbons are assumed to be similar to methane in terms of atmospheric lifetime being 12 ± 3 years & semi-empirical ODP being			A3
HC	R-	pentane	C5H12 or CH3CH2CH2CH2CH3	109-66-0	± 3{{#tag:ref	group=lower-alpha}}		± 2	A3				±.2
HC	R-a	isopentane	C5H12 or (CH3)2CHCH2CH3	78-78-4	± 3{{#tag:ref	group=lower-alpha}}		± 2{{#tag:ref	group=lower-alpha}}	A3
HC	R-	ethoxyethane (diethyl ether)	CH3CH2OCH2CH3	60-29-7	± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}	± 2{{#tag:ref	group=lower-alpha}}	A3?
HC	R-	methyl formate	HCOOCH3	107-31-3	± 3{{#tag:ref	group=lower-alpha}}			B2
HC	HC-12a	url=http://www.hcrefrigerant.com/msds.htm	title = HC Refrigerant}}	40–70% C3H8 · 30–60% C4H6 (by volume)
HC	HC-22a	propane	C3H8 98% by volume
HC	HC-502a	propane/ethane	C3H8 60–100% · C2H6 3-7% (by volume)
HFC / HFO	DR-14A
HFC	SP34E	R-134a (98.5%)	C2H2F4 (98.5%)
	R-	methylamine	CH3NH2	74-89-5
	R-	ethylamine	CH3CH2(NH2)	75-04-7
	R-	hydrogen	H2	1333-74-0				A3
	R-	helium	He	7440-59-7	Unlimited	{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	? A1
	R-	ammonia	NH3	7664-41-7				B2L
	R-	water/steam	H2O	7732-18-5			± 0.2	A1
	R-	neon	Ne	7440-01-9	Unlimited{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	? A1
	R-	nitrogen	N2	7727-37-9	Unlimited{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	A1
	R-	air N2/O2/Ar (78.082/20.945/.934 vol%)	78.082% N220.945% O2.934% Ar		Unlimited{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	+	A1?				?
	R-	oxygen	O2	7782-44-7	Unlimited{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	A1?
	R-	argon	Ar	7440-37-1	Unlimited{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	? A1
	R-	carbon dioxide	CO2	124-38-9	29,300-36,100			A1				at 518 kPa
	R-A	nitrous oxide	N2O	10024-97-2				A1?
	R-	sulfur dioxide	SO2	7446-09-5				B1
	R-	krypton	Kr	7439-90-9	Unlimited{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	{{#tag:ref	group=lower-alpha}}	? A1?
CFO	R-a	[1,1-dichloro-2,2-difluoroethylene](1-1-dichloro-2-2-difluoroethylene)	C2Cl2F2	79-35-6
CFO	R-	chlorotrifluoroethylene	C2ClF3	79-38-9
PFO	R-	tetrafluoroethylene	C2F4	116-14-3		{{#tag:ref	group=lower-alpha}}
HCO	R-	trichloroethylene (trielene)	C2HCl3	79-01-6
HCO	R-(E)	trans-1,2-dichloroethylene	C2H2Cl2	156-60-5
HFO	R-(E)	trans-1,2-difluoroethylene	C2H2F2	1630-78-0		{{#tag:ref	group=lower-alpha}}						–52.5
HFO	R-a	[1,1-difluoroethylene](1-1-difluoroethylene)	C2H2F2	75-38-7		{{#tag:ref	group=lower-alpha}}
HCO	R-	chloroethylene (vinyl chloride)	C2H3Cl	75-01-4				? B3
HFO	R-	eluoroethylene (vinyl fluoride)	C2H3F	75-02-5		{{#tag:ref	group=lower-alpha}}
HO	R-	ethene (ethylene)	CH2=CH2	74-85-1	± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}		A3
PFO	R-	hexafluoropropylene	C3F6	116-15-4	+	{{#tag:ref	group=lower-alpha}}	+
PFO	R-	hexafluoropropene trimer	(C3F6)3	6792-31-0		{{#tag:ref	group=lower-alpha}}
HCFO	R-yd(Z)	(Z)-2,3,3,3,-tetrafluoro-1-chloropropene	(Z)-CF3-CF=CHCl	111512-60-8	url=https://www.coolingpost.com/world-news/new-hcfo-refrigerant-ashrae-listed/	title=New HCFO refrigerant is ASHRAE listed	date=23 October 2017 }}	0.00012					148.5	14°C	156°C	3330
HCFO	R-zd(E)	trans-1-chloro-3,3,3-trifluoropropene	C3H2ClF3	102687-65-0
HFO	R-yf	[2,3,3,3-tetrafluoropropene](2-3-3-3-tetrafluoropropene)	C3H2F4	754-12-1			{{Nts		A2L
HFO	R-ze(E)	trans-1,3,3,3-tetrafluoropropene	C3H2F4	29118-24-9			{{Nts		A2L
HO	R-	propene (propylene)	C3H6 or CH3CH=CH2	115-07-1	± 3{{#tag:ref	group=lower-alpha}}		group=lower-alpha}}		A3
HFO	R-mzz(E)	trans-1,1,1,4,4,4-hexafluoro-2-butene	C4H2F6	66711-86-2
HFO	R-mzz(Z) (DR-2)	cis-1,1,1,4,4,4-hexafluoro-2-butene	CF3CH=CHCF3(Z)		692-49-9				A1

Type and flammability

Type	Meaning	Atoms in the molecule
CFC	chlorofluorocarbon	Cl, F, C
CFO	chlorofluoroolefin
HCFC	hydrochlorofluorocarbon	H, Cl, F, C
HCFO	hydrochlorofluoroolefin
HFC	hydrofluorocarbon	H, F, C
HFO	hydrofluoroolefin
HCC	hydrochlorocarbon	H, Cl, C
HCO	hydrochloroolefin
HC	hydrocarbon	H, C
HO	olefin (alkene)
PFC	perfluorocarbon	F, C
PFO	perfluoroolefin
PCC	perchlorocarbon	Cl, C
H	halon/haloalkane	Br, Cl (in some but not all), F, H (in some but not all), C

Flammability in air at 60 °C and 101.3 kPa	ASHRAE 34 safety group	Flammability in air at 60 °C and 101.3 kPa
OEL ≥ 400 ppm	Higher toxicity
OEL
Higher flammability
LFL or ETFL60 = 100 g/m3 OR HOC = 19 MJ/kg	A3	B3
Lower flammability
LFL or ETFL60 100 g/m3 and HOC	A2	B2
Lower flammability
LFL or ETFL60 100 g/m3 and HOC	A2L	B2L
No flame propagation	A1	B1

LFL = lower flammability limit

ETFL60 = elevated temperature flame limit at 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

References

Notes

References

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[[Wikipedia:Chemical infobox#References]]

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