List of refrigerants

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). The R number of a chemical refrigerant is assigned systematically according to molecular structure. First ASHRAE digit is the number of carbon atoms minus 1 (C-1); the second digit is the number of hydrogen atoms plus 1 (H+1); the third digit is the number of fluorine atoms; any remaining spaces are chlorine atoms. Eg.: R-22 aka R-022, which is chlorodifluoromethane. C=1 i.e. 1-1=0; H=1 i.e. 1+1=2; F=2 i.e 2; 1 remaining space 1=Cl. A "B" number means that one of the chlorine atoms is replaced by bromine (Br). This formula does not work with zeotropic or azeotropic blends.

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
• Net global warming potential over a 100-year time horizon
• 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 atomic mass units
• Normal boiling point (or bubble & dew points for the zeotrope(400)-series), or normal boiling point and azeotropic temperature for the azeotrope(500)-series) at 101,325 Pa (1 atmosphere) in degrees Celsius
• Critical temperature in degrees Celsius
• Absolute critical pressure in kilopascals

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

List

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 u	Boiling, or bubble/dew /azeotropic point(s) °C	Critical temp. °C	Critical pressure, absolute kPa
									PCC	R-10					Carbon tetrachloride (Tetrachloromethane)	CCl4	56-23-5	26	0.73	1,400	100? B1			153.8	76.72	283.35	4,560
CFC	R-11	Trichlorofluoromethane	CCl3F	75-69-4	45	1.0	4,660	1,000 A1	1,100	6.2	137.4	23.77	197.96	4,408
CFC	R-12	Dichlorodifluoromethane	CCl2F2	75-71-8	100	1.0	10,200	1,000 A1	18,000	90	120.9	−29.8	111.97	4,136
H	R-12B1	Bromochlorodifluoromethane	CBrClF2 or CF2ClBr	353-59-3	16	7.1	1,750				165.4	−3.7	153.8	4,102
H	R-12B2	Dibromodifluoromethane	CBr2F2	75-61-6	2.9	1.7					209.8	22.8	198.11	4,130
CFC	R-13	Chlorotrifluoromethane	CClF3	75-72-9	640	1	13,900	1,000 A1	40,000?	200?	104.5	−81.5	28.73	3,877
H	R-13B1	Bromotrifluoromethane	CBrF3 or CF3Br	75-63-8	65	16	6,290	1,000 A1			148.9	−57.75	67	3,964
PFC	R-14	Tetrafluoromethane	CF4	75-73-0	50,000	0	7,390	1,000 A1	110,000	400	88	−127.8	−45.64	3,750
HCC	R-20	Chloroform (Trichloromethane)	CHCl3	67-66-3	0.51		31				119.4	61.2	262.35	5,480
HCFC	R-21	Dichlorofluoromethane	CHFCl2	75-43-4	1.7	0.04	148	100? B1			102.9	8.92	178.45	5,180
HCFC	R-22	Chlorodifluoromethane	CHClF2	75-45-6	12.0	0.055	1,760	1,000 A1	59,000	210	86.5	−40.7	96.14	4,990
H	R-22B1	Bromodifluoromethane	CHBrF2 or CHF2Br	1511-62-2	5.8	0.74	404				130.9	−14.6	138.83	5,132
HFC	R-23	Trifluoromethane (Fluoroform)	CHF3	75-46-7	270	0	12,400	1,000 A1	41,000	120	70	−82.1	25.92	4,836
HCC	R-30	Dichloromethane (Methylene chloride)	CH2Cl2	75-09-2	0.38	0	8.7	100? B2			84.9	39.6	235.15	6,080
HCFC	R-31	Chlorofluoromethane	CH2FCl	593-70-4		0.02		350? B2?	10,000?	20?	68.5	−9.1	151.76	5,131
HFC	R-32	Difluoromethane	CH2F2	75-10-5	4.9	0	677	1,000 A2L	36,000	77	52	−52	78.11	5,782
HCC	R-40	Chloromethane	CH3Cl	74-87-3	1.0	0.02	13	100? B2			50.5	−24.2	143.05	6,660
HFC	R-41	Fluoromethane	CH3F	593-53-3	2.4	0	116				34	−78.2	44.13	5,897
HC	R-50	Methane	CH4	74-82-8	12 ± 3	<0(smog)	28	1,000 A3	9,000?	9?	16.04	−162±2	−82.3	4,640
PCC	R-110	Hexachloroethane	C2Cl6	67-72-1							236.7		431.28	3,937
CFC	R-111	Pentachlorofluoroethane	C2FCl5	354-56-3		1					220.3	135
CFC	R-112	1,1,2,2-Tetrachloro-1,2-difluoroethane	C2F2Cl4	76-12-0		1					203.8
CFC	R-112a	1,1,1,2-Tetrachloro-2,2-difluoroethane	C2F2Cl4	76-11-9		1					203.8
CFC	R-113	1,1,2-Trichloro-1,2,2-trifluoroethane	C2F3Cl3	76-13-1	85	1.0	5,820	1,000 A1	2,600	20	187.4	48	214.06	3,392
CFC	R-113a	1,1,1-Trichloro-2,2,2-trifluoroethane	C2F3Cl3	354-58-5		1					187.4
CFC	R-114	1,2-Dichlorotetrafluoroethane	C2F4Cl2	76-14-2	300	1.0	8,590	1,000 A1	20,000	140	170.9	3.5	145.68	3,257
CFC	R-114a	1,1-Dichlorotetrafluoroethane	C2F4Cl2	374-07-2		1					170.9
H	R-114B2	Dibromotetrafluoroethane	C2F4Br2 or CF2BrCF2Br	124-73-2	20	11.5	1,470				259.8	47.3	214.67
CFC	R-115	Chloropentafluoroethane	C2F5Cl	76-15-3	1,700	0.44	7,670	1,000 A1	120,000	760	154.5	−39.1	79.95	3,120
PFC	R-116	Hexafluoroethane	C2F6	76-16-4	10,000	0	12,200	1,000 A1	97,000	550	138	−78.2	19.88	3,042
HCC	R-120	Pentachloroethane	C2HCl5	76-01-7							202.3
HCFC	R-121	1,1,2,2-Tetrachloro-1-fluoroethane	C2HFCl4	354-14-3		0.01–0.04					185.8
HCFC	R-121a	1,1,1,2-Tetrachloro-2-fluoroethane	C2HFCl4	354-11-0		0.01–0.04					185.8
HCFC	R-122	1,1,2-Trichloro-2,2-difluoroethane	C2HF2Cl3	354-21-2		0.02–0.08					169.4
HCFC	R-122a	1,1,2-Trichloro-1,2-difluoroethane	C2HF2Cl3	354-15-4		0.02–0.08					169.4
HCFC	R-122b	1,1,1-Trichloro-2,2-difluoroethane	C2HF2Cl3	354-12-1		0.02–0.08					169.4
HCFC	R-123	2,2-Dichloro-1,1,1-trifluoroethane	C2HF3Cl2	306-83-2	1.3	0.02	79	50 B1	9,100	57	152.9	27.6	183.68	3,662
HCFC	R-123a	1,2-Dichloro-1,1,2-trifluoroethane	C2HF3Cl2	354-23-4	1.3?	0.02?	77?				152.9
HCFC	R-123b	1,1-Dichloro-1,2,2-trifluoroethane	C2HF3Cl2	812-04-4	1.3?	0.02?	77?				152.9
HCFC	R-124	1-Chloro-1,2,2,2-tetrafluoroethane	C2HF4Cl	2837-89-0	5.8	0.022	527	1,000 A1	10,000	56	136.5	−12	122.28	3,624
HCFC	R-124a	1-Chloro-1,1,2,2-tetrafluoroethane	C2HF4Cl	354-25-6	5.8?	0.022?	609?				136.5
HFC	R-125	Pentafluoroethane	C2HF5	354-33-6	29	0	3,170	1,000 A1	75,000	370	120	−48.5	66.18	3,629
HFC	R-E125	Pentafluorodimethyl ether	C2HF5O	3822-68-2	136	0	14,900				136
HCC	R-130	1,1,2,2-Tetrachloroethane	C2H2Cl4	79-34-5							167.8	146.5	388.06	5,840
HCC	R-130a	1,1,1,2-Tetrachloroethane	C2H2Cl4	630-20-6							167.8	130.5
HCFC	R-131	1,1,2-Trichloro-2-fluoroethane	C2H2FCl3	359-28-4		0.007–0.05					151.4
HCFC	R-131a	1,1,2-Trichloro-1-fluoroethane	C2H2FCl3	811-95-0		0.007–0.05					151.4
HCFC	R-131b	1,1,1-Trichloro-2-fluoroethane	C2H2FCl3	2366-36-1		0.007–0.05					151.4
HCFC	R-132	Dichlorodifluoroethane	C2H2F2Cl2	25915-78-0		0.008–0.05					134.9
HCFC	R-132a	1,1-Dichloro-2,2-difluoroethane	C2H2F2Cl2	471-43-2		0.008–0.05					134.9
HCFC	R-132b	1,2-Dichloro-1,1-difluoroethane	C2H2F2Cl2	1649-08-7		0.008–0.05					134.9
HCFC	R-132c	1,1-Dichloro-1,2-difluoroethane	C2H2F2Cl2	1842-05-3		0.008–0.05					134.9
H	R-132bB2	1,2-Dibromo-1,1-difluoroethane	C2H2Br2F2	75-82-1		0.2–1.5					223.8
HCFC	R-133	1-Chloro-1,2,2-Trifluoroethane	C2H2F3Cl	431-07-2		0.02–0.06					118.5
HCFC	R-133a	1-Chloro-2,2,2-Trifluoroethane	C2H2F3Cl	75-88-7		0.02–0.06					118.5
HCFC	R-133b	1-Chloro-1,1,2-Trifluoroethane	C2H2F3Cl	421-04-5		0.02–0.06					118.5
HFC	R-134	1,1,2,2-Tetrafluoroethane	C2H2F4	359-35-3	9.6	0	1,120				102
HFC	R-134a	1,1,1,2-Tetrafluoroethane	C2H2F4	811-97-2	14	0	1,300	1,000 A1	50,000	210	102	−26.3	101.06	4,059
HFC	R-E134	Bis(difluoromethyl)ether	C2H2F4O	1691-17-4	26	0	6,320				118
HCC	R-140	1,1,2-Trichloroethane	C2H3Cl3	79-00-5							133.4	112.5±2.5
HCC	R-140a	1,1,1-Trichloroethane (Methyl chloroform)	C2H3Cl3 or CH3CCl3	71-55-6	5.0	0.12	160				133.4	74
HCFC	R-141	1,2-Dichloro-1-fluoroethane	C2H3FCl2	430-57-9	9.3?	0.12?	725?				116.9
H	R-141B2	1,2-Dibromo-1-fluoroethane	C2H3Br2F	358-97-4		0.1–1.7					205.9
HCFC	R-141a	1,1-Dichloro-2-fluoroethane	C2H3FCl2	430-53-5	9.3?	0.12?	725?				116.9
HCFC	R-141b	1,1-Dichloro-1-fluoroethane	C2H3FCl2	1717-00-6	9.3	0.12	725	500 A2?	2,600	12	116.9	32	204.2	4,250
HCFC	R-142a	1-Chloro-1,2-difluoroethane	C2H3F2Cl	338-64-7	17.9?	0.07?	2,310?				100.5
HCFC	R-142b	1-Chloro-1,1-difluoroethane	C2H3F2Cl	75-68-3	17.9	0.07	2,310	1,000 A2	20,000	83	100.5	−10	137.1	4,123
HFC	R-143	1,1,2-Trifluoroethane	C2H3F3	430-66-0	3.5	0	328				84
HFC	R-143a	1,1,1-Trifluoroethane	C2H3F3	420-46-2	52	0	4,800	1,000 A2L	21,000	70	84	−47.6	72.89	3,776
HFC	R-143m	Methyl trifluoromethyl ether	C2H3F3O	421-14-7		0					100
HFC	R-E143a	2,2,2-Trifluoroethyl methyl ether	C3H5F3O	460-43-5	4.3	0	756				114.1
HCC	R-150	1,2-Dichloroethane	C2H4Cl2	107-06-2							99	84	292.83	5,370
HCC	R-150a	1,1-Dichloroethane	C2H4Cl2	75-34-3							99	57.2	249.83	5,070
HCFC	R-151	1-Chloro-2-fluoroethane	C2H4ClF	762-50-5							82.5
HCFC	R-151a	1-Chloro-1-fluoroethane	C2H4ClF	1615-75-4							82.5
HFC	R-152	1,2-Difluoroethane	C2H4F2	624-72-6	0.60	0	16				66
HFC	R-152a	1,1-Difluoroethane	C2H4F2	75-37-6	1.4	0	138	1,000 A2	12,000	32	66	−25	113.26	4,517
HCC	R-160	Chloroethane (ethyl chloride)	C2H5Cl	75-00-3							64.5	12.3	187.28	5,268
HFC	R-161	Fluoroethane	C2H5F	353-36-6	0.3	0	4				48.1		102.22	4,702
HC	R-170	Ethane	C2H6 or CH3CH3	74-84-0	58 days	< 0(smog)	5.5–10.2	1,000 A3	7,000	8.7	30.07	−88.6	32.18	4,872
HC	R-E170	Dimethyl ether	CH3OCH3	115-10-6	0.015	< 0(smog)	1	1,000 A3	8,500	16	46.1	−24
CFC	R-211	1,1,1,2,2,3,3-Heptachloro-3-fluoropropane	C3FCl7	422-78-6		1					303.2
CFC	R-212	Hexachlorodifluoropropane	C3F2Cl6	134452-44-1		1					286.7
CFC	R-213	1,1,1,3,3-Pentachloro-2,2,3-trifluoropropane	C3F3Cl5	2354-06-5		1					270.3
CFC	R-214	1,2,2,3-Tetrachloro-1,1,3,3-tetrafluoropropane	C3F4Cl4	2268-46-4		1					253.8
CFC	R-215	1,1,1-Trichloro-2,2,3,3,3-pentafluoropropane	C3F5Cl3	4259-43-2		1					237.4
CFC	R-216	1,2-Dichloro-1,1,2,3,3,3-hexafluoropropane	C3F6Cl2	661-97-2		1					220.9
CFC	R-216ca	1,3-Dichloro-1,1,2,2,3,3-hexafluoropropane	C3F6Cl2	662-01-1		1					220.9
CFC	R-217	1-Chloro-1,1,2,2,3,3,3-heptafluoropropane	C3F7Cl	422-86-6		1					204.5
CFC	R-217ba	2-Chloro-1,1,1,2,3,3,3-heptafluoropropane	C3F7Cl	76-18-6		1					204.5
PFC	R-218	Octafluoropropane	C3F8	76-19-7	2,600	0	8,830	1,000 A1	90,000	690	188	−36.7
HCFC	R-221	1,1,1,2,2,3-Hexachloro-3-fluoropropane	C3HFCl6	422-26-4		0.015–0.07					268.7
HCFC	R-222	Pentachlorodifluoropropane	C3HF2Cl5	134237-36-8		0.01–0.09					252.3
HCFC	R-222c	1,1,1,3,3-Pentachloro-2,2-difluoropropane	C3HF2Cl5	422-49-1		0.01–0.09					252.3
HCFC	R-223	Tetrachlorotrifluoropropane	C3HF3Cl4	134237-37-9		0.01–0.08					235.8
HCFC	R-223ca	1,1,3,3-Tetrachloro-1,2,2-trifluoropropane	C3HF3Cl4	422-52-6		0.01–0.08					235.8
HCFC	R-223cb	1,1,1,3-Tetrachloro-2,2,3-trifluoropropane	C3HF3Cl4	422-50-4		0.01–0.08					235.8
HCFC	R-224	Trichlorotetrafluoropropane	C3HF4Cl3	134237-38-0		0.01–0.09					219.4
HCFC	R-224ca	1,3,3-Trichloro-1,1,2,2-tetrafluoropropane	C3HF4Cl3	422-54-8		0.01–0.09					219.4
HCFC	R-224cb	1,1,3-Trichloro-1,2,2,3-tetrafluoropropane	C3HF4Cl3	422-53-7		0.01–0.09					219.4
HCFC	R-224cc	1,1,1-Trichloro-2,2,3,3-tetrafluoropropane	C3HF4Cl3	422-51-5		0.01–0.09					219.4
HCFC	R-225	Dichloropentafluoropropane	C3HF5Cl2	127564-92-5		0.01–0.05					202.9
HCFC	R-225aa	2,2-Dichloro-1,1,1,3,3-pentafluoropropane	C3HF5Cl2	128903-21-9		0.01–0.05					202.9
HCFC	R-225ba	2,3-Dichloro-1,1,1,2,3-pentafluoropropane	C3HF5Cl2	422-48-0		0.01–0.05					202.9
HCFC	R-225bb	1,2-Dichloro-1,1,2,3,3-pentafluoropropane	C3HF5Cl2	422-44-6		0.01–0.05					202.9
HCFC	R-225ca	3,3-Dichloro-1,1,1,2,2-pentafluoropropane	C3HF5Cl2	422-56-0	1.9	0.02	127				202.9
HCFC	R-225cb	1,3-Dichloro-1,1,2,2,3-pentafluoropropane	C3HF5Cl2	507-55-1	5.8	0.03	525				202.9
HCFC	R-225cc	1,1-Dichloro-1,2,2,3,3-pentafluoropropane	C3HF5Cl2	13474-88-9		0.01–0.05					202.9
HCFC	R-225da	1,2-Dichloro-1,1,3,3,3-pentafluoropropane	C3HF5Cl2	431-86-7		0.01–0.05					202.9
HCFC	R-225ea	1,3-Dichloro-1,1,2,3,3-pentafluoropropane	C3HF5Cl2	136013-79-1		0.01–0.05					202.9
HCFC	R-225eb	1,1-Dichloro-1,2,3,3,3-pentafluoropropane	C3HF5Cl2	111512-56-2		0.01–0.05					202.9
HCFC	R-226	Chlorohexafluoropropane	C3HF6Cl	134308-72-8		0.02–0.1					186.5
HCFC	R-226ba	2-Chloro-1,1,1,2,3,3-hexafluoropropane	C3HF6Cl	51346-64-6		0.02–0.1					186.5
HCFC	R-226ca	3-Chloro-1,1,1,2,2,3-hexafluoropropane	C3HF6Cl	422-57-1		0.02–0.1					186.5
HCFC	R-226cb	1-Chloro-1,1,2,2,3,3-hexafluoropropane	C3HF6Cl	422-55-9		0.02–0.1					186.5
HCFC	R-226da	2-Chloro-1,1,1,3,3,3-hexafluoropropane	C3HF6Cl	431-87-8		0.02–0.1					186.5
HCFC	R-226ea	1-Chloro-1,1,2,3,3,3-hexafluoropropane	C3HF6Cl	359-58-0		0.02–0.1					186.5
HFC	R-227ca	1,1,2,2,3,3,3-Heptafluoropropane	C3HF7	2252-84-8		0					170
HFC	R-227ca2	Trifluoromethyl 1,1,2,2-tetrafluoroethyl ether	C3HF7O	2356-61-8		0					186
HFC	R-227ea	1,1,1,2,3,3,3-Heptafluoropropane	C3HF7	431-89-0	34.2	0	3,350	1,000 A1	84,000	580	170	−16.4	102.8	2,980
HFC	R-227me	Trifluoromethyl 1,2,2,2-tetrafluoroethyl ether	C3HF7O	2356-62-9	11	0	1,540				186
HCFC	R-231	Pentachlorofluoropropane	C3H2FCl5	134190-48-0		0.05–0.09					234.3
HCFC	R-232	Tetrachlorodifluoropropane	C3H2F2Cl4	134237-39-1		0.008–0.1					217.9
HCFC	R-232ca	1,1,3,3-Tetrachloro-2,2-difluoropropane	C3H2F2Cl4	1112-14-7		0.008–0.1					217.9
HCFC	R-232cb	1,1,1,3-Tetrachloro-2,2-difluoropropane	C3H2F2Cl4	677-54-3		0.008–0.1					217.9
HCFC	R-233	Trichlorotrifluoropropane	C3H2F3Cl3	134237-40-4		0.007–0.23					201.4
HCFC	R-233ca	1,1,3-Trichloro-2,2,3-trifluoropropane	C3H2F3Cl3	131221-36-8		0.007–0.23					201.4
HCFC	R-233cb	1,1,3-Trichloro-1,2,2-trifluoropropane	C3H2F3Cl3	421-99-8		0.007–0.23					201.4
HCFC	R-233cc	1,1,1-Trichloro-2,2,3-trifluoropropane	C3H2F3Cl3	131211-71-7		0.007–0.23					201.4
HCFC	R-234	Dichlorotetrafluoropropane	C3H2F4Cl2	127564-83-4		0.01–0.28					184.9
HCFC	R-234aa	2,2-Dichloro-1,1,3,3-tetrafluoropropane	C3H2F4Cl2	17705-30-5		0.01–0.28					184.9
HCFC	R-234ab	2,2-Dichloro-1,1,1,3-tetrafluoropropane	C3H2F4Cl2	149329-24-8		0.01–0.28					184.9
HCFC	R-234ba	1,2-Dichloro-1,2,3,3-tetrafluoropropane	C3H2F4Cl2	425-94-5		0.01–0.28					184.9
HCFC	R-234bb	2,3-Dichloro-1,1,1,2-tetrafluoropropane	C3H2F4Cl2	149329-25-9		0.01–0.28					184.9
HCFC	R-234bc	1,2-Dichloro-1,1,2,3-tetrafluoropropane	C3H2F4Cl2	149329-26-0		0.01–0.28					184.9
HCFC	R-234ca	1,3-Dichloro-1,2,2,3-tetrafluoropropane	C3H2F4Cl2	70341-81-0		0.01–0.28					184.9
HCFC	R-234cb	1,1-Dichloro-2,2,3,3-tetrafluoropropane	C3H2F4Cl2	4071-01-6		0.01–0.28					184.9
HCFC	R-234cc	1,3-Dichloro-1,1,2,2-tetrafluoropropane	C3H2F4Cl2	422-00-4		0.01–0.28					184.9
HCFC	R-234cd	1,1-Dichloro-1,2,2,3-tetrafluoropropane	C3H2F4Cl2	70192-63-1		0.01–0.28					184.9
HCFC	R-234da	2,3-Dichloro-1,1,1,3-tetrafluoropropane	C3H2F4Cl2	146916-90-7		0.01–0.28					184.9
HCFC	R-234fa	1,3-Dichloro-1,1,3,3-tetrafluoropropane	C3H2F4Cl2	76140-39-1		0.01–0.28					184.9
HCFC	R-234fb	1,1-Dichloro-1,3,3,3-tetrafluoropropane	C3H2F4Cl2	64712-27-2		0.01–0.28					184.9
HCFC	R-235	Chloropentafluoropropane	C3H2F5Cl	134237-41-5		0.03–0.52					168.5
HCFC	R-235ca	1-Chloro-1,2,2,3,3-pentafluoropropane	C3H2F5Cl	28103-66-4		0.03–0.52					168.5
HCFC	R-235cb	3-Chloro-1,1,1,2,3-pentafluoropropane	C3H2F5Cl	422-02-6		0.03–0.52					168.5
HCFC	R-235cc	1-Chloro-1,1,2,2,3-pentafluoropropane	C3H2F5Cl	679-99-2		0.03–0.52					168.5
HCFC	R-235da	2-Chloro-1,1,1,3,3-pentafluoropropane	C3H2F5Cl	134251-06-2		0.03–0.52					168.5
HCFC	R-235fa	1-Chloro-1,1,3,3,3-pentafluoropropane	C3H2F5Cl	677-55-4		0.03–0.52					168.5
HFC	R-236cb	1,1,1,2,2,3-Hexafluoropropane	C3H2F6	677-56-5	13.6	0	1,210				152	−1.5
HFC	R-236ea	1,1,1,2,3,3-Hexafluoropropane	C3H2F6	431-63-0	10.7	0	1,330				152		139.29	3,502
HFC	R-236fa	1,1,1,3,3,3-Hexafluoropropane	C3H2F6	690-39-1	240	0	8,060	1,000 A1	55,000	340	152	−1.05±.35	124.92	3,200
HFC	R-236me	1,2,2,2-Tetrafluoroethyl difluoromethyl ether	C3H2F6O	57041-67-5	5.8	0	989				168
HFC	R-FE-36	Hexafluoropropane	C3H2F6	359-58-0		0					152
HCFC	R-241	Tetrachlorofluoropropane	C3H3FCl4	134190-49-1		0.004–0.09					199.9
HCFC	R-242	Trichlorodifluoropropane	C3H3F2Cl3	134237-42-6		0.005–0.13					183.4
HCFC	R-243	Dichlorotrifluoropropane	C3H3F3Cl2	134237-43-7		0.007–0.12					167
HCFC	R-243ca	1,3-Dichloro-1,2,2-trifluoropropane	C3H3F3Cl2	67406-68-2		0.007–0.12					167
HCFC	R-243cb	1,1-Dichloro-2,2,3-trifluoropropane	C3H3F3Cl2	70192-70-0		0.007–0.12					167
HCFC	R-243cc	1,1-Dichloro-1,2,2-trifluoropropane	C3H3F3Cl2	7125-99-7		0.007–0.12					167
HCFC	R-243da	2,3-Dichloro-1,1,1-trifluoropropane	C3H3F3Cl2	338-75-0		0.007–0.12					167
HCFC	R-243ea	1,3-Dichloro-1,2,3-trifluoropropane	C3H3F3Cl2	151771-08-3		0.007–0.12					167
HCFC	R-243ec	1,3-Dichloro-1,1,2-trifluoropropane	C3H3F3Cl2	149329-27-1		0.007–0.12					167
HCFC	R-244	Chlorotetrafluoropropane	C3H3F4Cl	134190-50-4		0.009–0.14					150.5
HCFC	R-244ba	2-Chloro-1,2,3,3-tetrafluoropropane	C3H3F4Cl	19041-02-2		0.009–0.14					150.5
HCFC	R-244bb	2-Chloro-1,1,1,2-tetrafluoropropane	C3H3F4Cl	421-73-8		0.009–0.14					150.5
HCFC	R-244ca	3-Chloro-1,1,2,2-tetrafluoropropane	C3H3F4Cl	679-85-6		0.009–0.14					150.5
HCFC	R-244cb	1-Chloro-1,2,2,3-tetrafluoropropane	C3H3F4Cl	67406-66-0		0.009–0.14					150.5
HCFC	R-244cc	1-Chloro-1,1,2,2-tetrafluoropropane	C3H3F4Cl	421-75-0		0.009–0.14					150.5
HCFC	R-244da	2-Chloro-1,1,3,3-tetrafluoropropane	C3H3F4Cl	19041-02-2		0.009–0.14					150.5
HCFC	R-244db	2-Chloro-1,1,1,3-tetrafluoropropane	C3H3F4Cl	117970-90-8		0.009–0.14					150.5
HCFC	R-244ea	3-Chloro-1,1,2,3-tetrafluoropropane	C3H3F4Cl			0.009–0.14					150.5
HCFC	R-244eb	3-Chloro-1,1,1,2-tetrafluoropropane	C3H3F4Cl	151771-09-4		0.009–0.14					150.5
HCFC	R-244ec	1-Chloro-1,1,2,3-tetrafluoropropane	C3H3F4Cl	149448-09-9		0.009–0.14					150.5
HCFC	R-244fa	3-Chloro-1,1,1,3-tetrafluoropropane	C3H3F4Cl	149329-29-3		0.009–0.14					150.5
HCFC	R-244fb	1-Chloro-1,1,3,3-tetrafluoropropane	C3H3F4Cl	2730-64-5		0.009–0.14					150.5
HFC	R-245ca	1,1,2,2,3-Pentafluoropropane	C3H3F5	679-86-7	6.2	0	716				134		174.42	3,925
HFC	R-245cb	Pentafluoropropane	C3H3F5	1814-88-6		0					134
HFC	R-245ea	1,1,2,3,3-Pentafluoropropane	C3H3F5	24270-66-4		0					134
HFC	R-245eb	1,1,1,2,3-Pentafluoropropane	C3H3F5	431-31-2		0					134
HFC	R-245fa	1,1,1,3,3-Pentafluoropropane	C3H3F5	460-73-1	7.6	0	858	300 B1	34,000	190	134	15	154.05	3,640
HFC	R-245mc	Methyl pentafluoroethyl ether	C3H3F5O	22410-44-2		0					150
HFC	R-245mf	Difluoromethyl 2,2,2-trifluoroethyl ether	C3H3F5O	1885-48-9	2.2	0	286				150
HFC	R-245qc	Difluoromethyl 1,1,2-trifluoroethyl ether	C3H3F5O	69948-24-9		0					150
HCFC	R-251	Trichlorofluoropropane	C3H4FCl3	134190-51-5		0.001–0.01					165.4
HCFC	R-252	Dichlorodifluoropropane	C3H4F2Cl2	134190-52-6		0.005–0.04					149
HCFC	R-252ca	1,3-Dichloro-2,2-difluoropropane	C3H4F2Cl2	1112-36-3		0.005–0.04					149
HCFC	R-252cb	1,1-Dichloro-2,2-difluoropropane	C3H4F2Cl2	1112-01-2		0.005–0.04					149
HCFC	R-252dc	1,2-Dichloro-1,1-difluoropropane	C3H4F2Cl2	7126-15-0		0.005–0.04					149
HCFC	R-252ec	1,1-Dichloro-1,2-difluoropropane	C3H4F2Cl2	151771-10-7		0.005–0.04					149
HCFC	R-253	Chlorotrifluoropropane	C3H4F3Cl	134237-44-8		0.003–0.03					132.5
HCFC	R-253ba	2-Chloro-1,2,3-trifluoropropane	C3H4F3Cl	151771-11-8		0.003–0.03					132.5
HCFC	R-253bb	2-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	69202-10-4		0.003–0.03					132.5
HCFC	R-253ca	1-Chloro-2,2,3-trifluoropropane	C3H4F3Cl	56758-54-4		0.003–0.03					132.5
HCFC	R-253cb	1-Chloro-1,2,2-trifluoropropane	C3H4F3Cl	70192-76-6		0.003–0.03					132.5
HCFC	R-253ea	3-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	121612-65-5		0.003–0.03					132.5
HCFC	R-253eb	1-Chloro-1,2,3-trifluoropropane	C3H4F3Cl	151771-12-9		0.003–0.03					132.5
HCFC	R-253ec	1-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	134251-05-1		0.003–0.03					132.5
HCFC	R-253fa	3-Chloro-1,3,3-trifluoropropane	C3H4F3Cl			0.003–0.03					132.5
HCFC	R-253fb	3-Chloro-1,1,1-trifluoropropane	C3H4F3Cl	460-35-5		0.003–0.03					132.5
HCFC	R-253fc	1-Chloro-1,1,3-trifluoropropane	C3H4F3Cl	83124-56-5		0.003–0.03					132.5
HFC	R-254cb	1,1,2,2-Tetrafluoropropane	C3H4F4	40723-63-5		0					116.1
HFC	R-254pc	Methyl 1,1,2,2-tetrafluoroethyl ether	C3H4F4O	425-88-7	2.6	0	359				132.1
HCFC	R-261	Dichlorofluoropropane	C3H5FCl2	134237-45-9		0.002–0.02					131
HCFC	R-261ba	1,2-Dichloro-2-fluoropropane	C3H5FCl2	420-97-3		0.002–0.02					131
HCFC	R-262	Chlorodifluoropropane	C3H5F2Cl	134190-53-7		0.002–0.02					114.5
HCFC	R-262ca	1-Chloro-2,2-difluoropropane	C3H5F2Cl	420-99-5		0.002–0.02					114.5
HCFC	R-262fa	3-Chloro-1,1-difluoropropane	C3H5F2Cl	83124-57-6		0.002–0.02					114.5
HCFC	R-262fb	1-Chloro-1,3-difluoropropane	C3H5F2Cl	151771-13-0		0.002–0.02					114.5
HFC	R-263	Trifluoropropane	C3H5F3	94458-05-6		0					98.1
HCFC	R-271	Chlorofluoropropane	C3H6FCl	134190-54-8		0.001–0.03					96.5
HCFC	R-271b	2-Chloro-2-fluoropropane	C3H6FCl	420-44-0		0.001–0.03					96.5
HCFC	R-271d	2-Chloro-1-fluoropropane	C3H6FCl	20372-78-5		0.001–0.03					96.5
HCFC	R-271fb	1-Chloro-1-fluoropropane	C3H6FCl	430-55-7		0.001–0.03					96.5
HFC	R-272	Difluoropropane	C3H6F2	94458-04-5		0					80.1
HFC	R-281	Fluoropropane	C3H7F	106857-11-8		0					62.1
HC	R-290	Propane	C3H8 or CH3CH2CH3	74-98-6	13 days	< 0(smog)	3.3–9.5	1,000 A3	5,300	9.5	44.1	−42.1±.2	96.7	4,248
CFC	R-C316	Dichlorohexafluorocyclobutane	C4Cl2F6	356-18-3	74.6 ± 3(E),114.1 ± 10 (Z)	0.40(E), 0.49(Z)	4,160(E), 5,400(Z)				232.9
CFC	R-C317	Chloroheptafluorocyclobutane	C4ClF7	377-41-3							216.5
PFC	R-C318	Octafluorocyclobutane (Perfluorocyclobutane)	C4F8 or -(CF2)4-	115-25-3	3,200	0	10,300	1,000 A1	69,000	570	200	−6	115.23	2,777
PFC	R-3-1-10	Decafluorobutane (Perfluorobutane)	C4F10	355-25-9	2,600	0	8,860				238	−1.7
HFC	R-329ccb	1,1,1,2,2,3,3,4,4-Nonafluorobutane	C4HF9	375-17-7		0					220
HFC	R-338eea	1,1,1,2,3,4,4,4-Octafluorobutane	C4H2F8	75995-72-1		0					202
HFC	R-347ccd	1,1,1,2,2,3,3-Heptafluorobutane	C4H3F7	662-00-0		0					184.1
HFC	R-347mcc	Perfluoropropyl methyl ether	C4H3F7O	375-03-1	5.2	0	575				200.1
HFC	R-347mmy	Perfluoroisopropyl methyl ether	C4H3F7O	22052-84-2	3.4	0	343				200.1
HFC	R-365mfc	1,1,1,3,3-Pentafluorobutane	C4H5F5	406-58-6	8.6	0	804				148.1
PFC	R-4-1-12	Dodecafluoropentane (Perfluoropentane)	C5F12	678-26-2	4,100	0	9,160				288
PFC	R-5-1-14	Tetradecafluorohexane (Perfluorohexane)	C6F14	355-42-0	3,200	0	9,300				338	56
CFC	R-400	R-12/114(50/50 wt%) OR (60/40)(must be specified)	50% CCl2F2 · 50% C2F4Cl2 OR 60% CCl2F2 · 40% C2F4Cl2		200 OR 180	1.0	10,450 10,540	1,000 A1 1,000 A1	28,000 30,000	160 170	141.6 136.9
HCFC	R-401A	R-22/152a/124 (53±2/13+.5,-1.5/34±1)	53±2% CHClF2 · 13+.5,-1.5% C2H4F2 · 34±1% C2HF4Cl	MP-39	8.514	0.03398	1,182	1,000 A1	27,000	110	94.4	−34.4/−28.8	105.27	4,613
HCFC	R-401B	R-22/152a/124 (61±2/11+.5,-1.5/28±1)	61±2% CHClF2 · 11+.5,-1.5% C2H4F2 · 28±1% C2HF4Cl	MP-66	9.098	0.03666	1,288	1,000 A1	30,000	120	92.8	−35.7/−30.8	103.54	4,682
HCFC	R-401C	R-22/152a/124 (33±2/15+.5,-1.5/52±1)	33±2% CHClF2 · 15+.5,-1.5% C2H4F2 · 52±1% C2HF4Cl	MP-52	7.186	0.02794	933	1,000 A1	20,000	84	101	−30.5/−23.8
HCFC	R-402A	R-125/290/22 (60±2/2±1/38±2)	60±2% C2HF5 · 2±1% C3H8 · 38±2%  CHClF2	HP-80	22.2?	0.019	2,788	1,000 A1	33,000	140	101.5	−49.2/−47.0	76.03	4,234
HCFC	R-402B	R-125/290/22 (38±2/2±1/60±2)	38±2% C2HF5 · 2±1% C3H8 · 60±2% CHClF2	HP-81	18.46?	0.03	2,416	1,000 A1	63,000	240	94.7	−47.2/−44.9	83.03	4,525
HCFC	R-403A	R-290/22/218 (5+.2,-2/75±2/20±0)	5+.2,-2% C3H8 · 75±2% CHClF2 · 20±0% C3F8	ISCEON 69-S	529.6?	0.0375	3,124	1,000 A2	33,000	120	92	−44.0/−42.3	91.22	4,688
HCFC	R-403B	R-290/22/218 (5+.2,-2/56±2/39±0)	5+.2,-2% C3H8 · 56±2% CHClF2 · 39±0% C3F8	ISCEON 69-L	1,021.32?	0.028	4,457	1,000 A1	70,000	290	103.3	−43.8/−42.3	88.72	4,399
HFC	R-404A	R-125/143a/134a (44±2/52±1/4±2)	44±2% C2HF5 · 52±1% C2H3F3 · 4±2% C2H2F4	HP-62, FX-70	40.36	0	3,922	1,000 A1	130,000	500	97.6	−46.6/−45.8	72.14	3,735
HCFC	R-405A	R-22/152a/142b/C318 (45±0/7±1/5.5±1/42.5±2)	45±0% CHClF2 · 7±1% C2H4F2 · 5.5±1% C2H3F2Cl · 42.5±2% C4F8	GREENCOOL G2015	1,366.4825	0.02635	5,328	1,000 A1?	57,000	260	111.9	−32.9/−24.5	106	4,289
HCFC	R-406A	R-22/600a/142b (55±2/4±1/41±0)	55±2% CHClF2 · 4±1% C4H10 · 41±0% C2H3F2Cl	GHG	14.419?	0.0562	1,943	1,000 A2	21,000	25	89.9	−32.7/−23.5	116.5	4,881
HCFC	R-406B	R-22/600a/142b (65±2/4±1/31±0)	65±2% CHClF2 · 4±1% C4H10 · 31±0% C2H3F2Cl	GHG-HP	13.829?	0.0542	1,893	1,000? A2?	21,000?	25?	88.6
HFC	R-407A	R-32/125/134a (20±2/40±2/40±2)	20±2% CH2F2 · 40±2% C2HF5 · 40±2% C2H2F4	Klea 60	18.18	0	2,107	1,000 A1	83,000	300	90.1	−45.2/−38.7	81.91	4,487
HFC	R-407B	R-32/125/134a (10±2/70±2/20±2)	10±2% CH2F2 · 70±2% C2HF5 · 20±2% C2H2F4	Klea 61	23.59	0	2,804	1,000 A1	79,000	330	102.9	−46.8/−42.4	74.38	4,083
HFC	R-407C	R-32/125/134a (23±2/25±2/52±2)	23±2% CH2F2 · 25±2% C2HF5 · 52±2% C2H2F4	Klea 66, AC9000	15.657	0	1,774	1,000 A1	81,000	290	86.2	−43.8/−36.7	86.05	4,634
HFC	R-407D	R-32/125/134a (15±2/15±2/70±2)	15±2% CH2F2 · 15±2% C2HF5 · 70±2% C2H2F4		14.885	0	1,627	1,000 A1	68,000	250	91	−39.4/−32.7	91.57	4,483
HFC	R-407E	R-32/125/134a (25±2/15±2/60±2)	25±2% CH2F2 · 15±2% C2HF5 · 60±2% C2H2F4		13.975	0	1,552	1,000 A1	80,000	280	83.8	−42.8/−35.6	88.77	4,734
HFC	R-407F	R-32/125/134a (30±2/30±2/40±2)	30±2% CH2F2 · 30±2% C2HF5 · 40±2% C2H2F4	Genetron Performax LT	15.77	0	1,825	1,000 A1	95,000	320	82.1	−46.1/−39.7
HCFC	R-408A	R-125/143a/22 (7±2/46±1/47±2)	7±2% C2HF5 · 46±1% C2H3F3 · 47±2% CHClF2	FX-10	31.59	0.0235	3,152	1,000 A1	95,000	340	87	−45.5/−45.0	83.5	4,340
HCFC	R-409A	R-22/124/142b (60±2/25±2/15±1)	60±2% CHClF2 · 25±2% C2HF4Cl · 15±1% C2H3F2Cl	FX-56	11.335	0.046	1,585	1,000 A1	29,000	110	97.4	−35.4/−27.5	106.92	4,600
HCFC	R-409B	R-22/124/142b (65±2/25±2/10±1)	65±2% CHClF2 · 25±2% C2HF4Cl · 10±1% C2H3F2Cl	FX-57	11.04	0.045	1,560	1,000 A1	30,000	120	96.7	−36.5/−29.7	104.36	4,711
HFC	R-410A	R-32/125 (50+.5,–1.5/50+1.5,–.5)	50+.5,–1.5% CH2F2 · 50+1.5,–.5% CHF2CF3	AZ-20, Puron, Suva 9100	16.95	0	2,088	1,000 A1	140,000	420	72.6	−51.6/−51.5	70.17	4,770
HFC	R-410B	R-32/125 (45±1/55±1)	45±1% CH2F2 · 55±1% CHF2CF3	AC9100	18.155	0	2,229	1,000? A1	140,000	430	75.6	−51.5/−51.4
HCFO	R-411A	R-1270/22/152a (1.5+0,–1/87.5+2,–0/11+0,–1)	1.5+0,–1% C3H6 · 87.5+2,–0% CHClF2 · 11+0,–1% C2H4F2	GREENCOOL G2018a	10.834	0.04375	1,597	990 A2	14,000	46	82.4	−39.7/−37.2	99.06	4,954
HCFO	R-411B	R-1270/22/152a (3+0,–1/94+2,–0/3+0,–1)	3+0,–1% C3H6 · 94+2,–0% CHClF2 · 3+0,–1% C2H4F2	GREENCOOL G2018b	11.682	0.047	1,705	980 A2	13,000	45	83.1	−41.6/−41.3	95.95	4,947
HCFO	R-411C	R-1270/22/152a (3+0,–1/95.5+2,–0/1.5+0,–1)	3+0,–1% C3H6 · 95.5+2,–0% CHClF2 · 1.5+0,–1% C2H4F2	GREENCOOL G2018c	11.841	0.04775	1,730	970? A2?	12,000?	44?	83.4		95.5	4,950
HCFC	R-412A	R-22/218/142b (70±2/5±2/25±1)	70±2% CHClF2 · 5±2% C3F8 · 25±1% C2H3F2Cl	Arcton TP5R	142.875	0.0525	2,286	1,000 A2	22,000	82	92.2	−36.4/−28.8	107.5	4,881
HFC	R-413A	R-218/134a/600a (9±1/88±2/3+0,–1)	9±1% C3F8 · 88±2% C2H2F4 · 3+0,–1% C4H10	ISCEON 49	246.68?	0	2,053	1,000 A2	22,000	94	104	−29.3/−27.6	101.39	4,240
HCFC	R-414A	R-22/124/600a/142b (51±2/28.5±2/4±.5/16.5+.5,–1)	51±2% CHClF2 · 28.5±2% C2HF4Cl · 4±.5% C4H10 · 16.5+.5,–1% C2H3F2Cl	GHG-X4, Autofrost, Chill-It	11.2065?	0.04332	1,478	1,000 A1	26,000	100	96.9	−34.0/−25.8	110.72	4,702
HCFC	R-414B	R-22/124/600a/142b (50±2/39±2/1.5±.5/9.5+.5,–1)	50±2% CHClF2 · 39±2% C2HF4Cl · 1.5±.5% C4H10 · 9.5+.5,–1% C2H3F2Cl	Hot Shot, Kar Kool	10.1425?	0.04023	1,362	1,000 A1	23,000	95	101.5	−34.4/−26.1	108	4,592
HCFC	R-415A	R-22/152a (82±1/18±1)	82±1% CHClF2 · 18±1% C2H4F2		10.092	0.041	1,507	1,000 A2	57,000	190	81.9	−37.5/−34.7
HCFC	R-415B	R-22/152a (25±1/75±1)	25±1% CHClF2 · 75±1% C2H4F2		4.05	0.0125	546	1,000 A2	52,000	120	70.2	−23.4/−21.8
HCFC	R-416A	R-134a/124/600 (59+.5,–1/39.5+1,–.5/1.5+1,–.2)	59+.5,-1% C2H2F4 · 39.5+1,–.5% C2HF4Cl · 1.5+1,–.2% C4H10	FRIGC (FR-12)	10.731?	0.00869	1,084	1,000 A1	14,000	62	111.9	−38.0/−32.9	108.22	4,020
HFC	R-417A	R-125/134a/600 (46.6±1.1/50±1/3.4+.1,–.4)	46.6±1.1% C2HF5 · 50±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON 59, NU-22	20.922?	0	2,346	1,000 A1	13,000	56	106.7	−41.2/−40.1	89.89	4,102
HFC	R-417B	R-125/134a/600 (79±1/18.3±1/2.7+.1,–.5)	79±1% C2HF5 · 18.3±1% C2H2F4 · 2.7+.1,–.5% C4H10		25.796?	0	3,027	1,000 A1	15,000	70	113.1	−44.9/−41.5
HCFC	R-418A	R-290/22/152a (1.5±.5/96±1/2.5±.5)	1.5±.5% C3H8 · 96±1% CHClF2 · 2.5±.5% C2H4F2		11.735?	0.048	1,741	1,000 A2	59,000	200	84.6	−42.6/−36.0
HFC	R-419A	R-125/134a/E170 (77±1/19±1/4±1)	77±1% C2HF5 · 19±1% C2H2F4 · 4±1% C2H6O		24.9906	0	2,967	1,000 A2	70,000	310	109.3	−25.0/−24.2
HCFC	R-420A	R-134a/142b (88+1,–0/12+0,–1)	88+1,–0% C2H2F4 · 12+0,–1% C2H3F2Cl	Choice Refrigerant	14.468	0.0084	1,548	1,000 A1	45,000	190	101.8	−34.4/−28.8
HFC	R-421A	R-125/134a (58±1/42±1)	58±1% C2HF5 · 42±1% C2H2F4	Choice R421A	22.7	0	2,631	1,000 A1	61,000	280	111.7
HFC	R-421B	R-125/134a (85±1/15±1)	85±1% C2HF5 · 15±1% C2H2F4	Choice 421B	26.75	0	3,190	1,000 A1	69,000	330	116.9
HFC	R-422A	R-125/134a/600a (85.1±1/11.5±1/3.4+.1,–.4)	85.1±1% C2HF5 · 11.5±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON 79	26.697?	0	3,143	1,000 A1	63,000	290	113.6
HFC	R-422B	R-125/134a/600a (55±1/42±1/3+.1,–.5)	55±1% C2HF5 · 42±1% C2H2F4 · 3+.1,–.5% C4H10	ICOR XAC1	22.19?	0	2,526	1,000 A1	56,000	250	108.5
HFC	R-422C	R-125/134a/600a (82±1/15±1/3+.1,–.5)	82±1% C2HF5 · 15±1% C2H2F4 · 3+.1,–.5% C4H10	ICOR XLT1	26.24?	0	3,085	1,000 A1	62,000	290	113.4
HFC	R-422D	R-125/134a/600a (65.1+.9,–1.1/31.5±1/3.4+.1,–.4)	65.1+.9,–1.1% C2HF5 · 31.5±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON MO29	23.697?	0	2,729	1,000 A1	58,000	260	109.9
HFC	R-423A	R-134a/227ea (52.5±1/47.5±1)	52.5±1% C2H2F4 · 47.5±1% C3HF7		23.595	0	2,280	1,000 A1	59,000	310	126
HFC	R-424A	R-125/134a/600a/600/601a (50.5±1/47±1/.9+.1,–.2/1+.1,+.2/.6+.1,–.2)	50.5±1% C2HF5 · 47±1% C2H2F4 · 1.9+.3,–.1% C4H10 · .6+.1,–.2% C5H12	RS-44 (new comp.)	21.525?	0	2,440?	970 A1	23,000	100	108.4
HFC	R-425A	R-32/134a/227ea (18.5±.5/69.5±.5/12±.5)	18.5±.5% CH2F2 · 69.5±.5% C2H2F4 · 12±.5% C3HF7		14.7405	0	1,505	1,000 A1	72,000	260	90.3
HFC	R-426A	R-125/134a/600/601a (5.1±1/93±1/1.3+.1,–.2/.6+.1,–.2)	5.1±1% C2HF5 · 93±1% C2H2F4 · 1.3+.1,–.2% C4H10 · .6+.1,–.2% C5H12	RS-24 (new comp.)	14.727?	0	1,508?	990 A1	20,000	83	101.6
HFC	R-427A	R-32/125/143a/134a (15±2/25±2/10±2/50±2)	15±2% CH2F2 · 25±2% C2HF5 · 10±2% C2H3F3 · 50±2% C2H2F4	Forane 427A	20.185	0	2,138	1,000 A1	79,000	290	90.4
HFC	R-428A	R-125/143a/290/600a (77.5±1/20±1/.6+.1,–.2/1.9+.1,–.2)	77.5±1% C2HF5 · 20±1% C2H3F3 · .6+.1,–.2% C3H8 · 1.9+.1,–.2% C4H10	RS-52	33.175?	<0(smog)	3,607	1,000 A1	83,000	370	107.5
HFC	R-429A	R-E170/152a/600a (60±1/10±1/30±1)	60±1% C2H6O · 10±1% C2H4F2 · 30±1% C4H10		3.749?	<0(smog)	13.9	1,000 A3	6,300	13	50.8
HFC	R-430A	R-152a/600a (76±1/24±1)	76±1% C2H4F2 · 24±1% C4H10		3.944?	0	95	1,000 A3	8,000	21	64
HFC	R-431A	R-290/152a (71±1/29±1)	71±1% C3H8 · 29±1% C2H4F2		8.926?	<0(smog)	38.3	1,000 A3	5,500	11	48.8
HO	R-432A	R-1270/E170 (80±1/20±1)	80±1% C3H6 · 20±1% C2H6O		9.603?	<0(smog)	1.64	710 A3	1,200	2.1	42.8
HO	R-433A	R-1270/290 (30±1/70±1)	30±1% C3H6 · 70±1% C3H8		12 ± 3	< 0(smog)	2.85	880 A3	3,100	5.5	43.5	−44.6/−44.2?
HO	R-433B	R-1270/290 (5±1/95±1)	5±1% C3H6 · 95±1% C3H8		12 ± 3	< 0(smog)	3.23	950 A3	4,500	8.1	44	−42.7/−42.5
HO	R-433C	R-1270/290 (25±1/75±1)	25±1% C3H6 · 75±1% C3H8		12 ± 3	< 0(smog)	2.93	790 A3	3,600	6.6	43.6	−44.3/−43.9
HFC	R-434A	R-125/143a/134a/600a (63.2±1/18±1/16±1/2.8+.1,–.2)	63.2±1% C2HF5 · 18±1% C2H3F3 · 16±1% C2H2F4 · 2.8+.1,–.2% C4H10	RS-45	30.264?	0	3,245	1,000 A1	73,000	320	105.7	−45.0/−42.3
HFC	R-435A	R-E170/152a (80±1/20±1)	80±1% C2H6O · 20±1% C2H4F2		0.292	<0(smog)	25.6	1,000 A3	8,500	17	49	−26.1/−25.9
HC	R-436A	R-290/600a (56±1/44±1)	56±1% C3H8 · 44±1% C4H10		12 ± 3	<0(smog)	3.17	1,000 A3	4,000	8	49.3	−34.3/−26.2
HC	R-436B	R-290/600a (52±1/48±1)	52±1% C3H8 · 48±1% C4H10		12 ± 3	<0(smog)	3.16	1,000 A3	4,000	8	49.9	−33.4/−25.0
HFC	R-437A	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% C2HF5 · 78.5+1.5,–.7% C2H2F4 · 1.4+.1,–.2% C4H10 · .6+.1,–.2% C5H12		16.885?	0	1,805?	990 A1	19,000	81	103.7	−32.9/−29.2
HFC	R-438A	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% CH2F2 · 45±1.5% C2HF5 · 44.2±1.5% C2H2F4 · 1.7+.1,-.2% C4H10 · .6+.1,-.2% C5H12	KDD5, ISCEON MO99	19.9305?	0	2,265?	990 A1	20,000	79	99.1	−43.0/−36.4
HFC	R-439A	R-32/125/600a (50±1/47±1/3±.5)	50±1% CH2F2 · 47±1% C2HF5 · 3±.5% C4H10		16.44?	0	1,983	990 A2	26,000	76	71.2	−52.0/−51.8
HFC	R-440A	R-290/134a/152a (.6±.1/1.6±.6/97.8±.5)	.6±.1% C3H8 · 1.6±.6% C2H2F4 · 97.8±.5% C2H4F2		1.6652?	<0(smog)	144	1,000 A2	12,000	31	66.2	−25.5/−24.3
HC	R-441A	R-170/290/600a/600 (3.1±.3/54.8±2/6±.6/36.1±2)	3.1±.3% C2H6 · 54.8±2% C3H8 · 42.1±2.6% C4H10	HCR-188C	12 ± 3	<0(smog)	3.6	1,000 A3	3,200	6.3	48.3	−41.9/−20.4
HFC / HFO	R-448A	R-32/125/134a/1234ze/1234yf (26%/26%/21%/7%/20%)	26% CH2F2  · 26% C2HF5  · 21% C2H2F4  · 7% C3H2F4  · 20% C3H2F4	Solistice N-40		0	1273	A1			189.9	−45.9	83.7	4,660
HFO	R-449A	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	Forane 449a		0	1,282	A1			87.2	−45.9	81.5
HFO	R-452B	R-32/R-125/1234yf (67.0%/7.0%/26.0%)	67.0% CH2F2  · 7.0% C2HF5  · 26.0% C3H2F4	Opteon XL55, Solstice L41y		0	676	A2L			63.5	−50.9/−50.1	76.0	5,220
HFC	R-453A	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	RS-70		0	1,765	1,000 A1			88.8	−42.2	87.9	4,530
HFO	R-454A	R-32/1234yf (35.0%/65.0%)	35.0% CH2F2  · 65.0% C3H2F4	Opteon XL40		0	239	A2L			80.5	−48.3	78.9
HFO	R-454B	R-32/1234yf (68.9%/31.1%)	68.9% CH2F2  · 31.1% C3H2F4	Opteon XL41, Puron Advance		0	466	A2L			62.6	−50.9	77.0
HFO	R-454C	R-32/1234yf (21.5%/78.5%)	21.5% CH2F2  · 78.5% C3H2F4	Opteon XL20		0	148	A2L			90.8	−45.9	82.4
HFO	R-455A	R-32/1234yf/744 (75.5%/21.5%/3%)	21.5% CH2F2  · 75.5% C3H2F4  · 3% CO2	Solstice L40x		0	146	A2L			87.5	−52.3/−39.4	85.6	4,660
HFO	R-456A	R-32/134a/1234ze(E) (6.0%/45.0%/49.0%)	6.0% CH2F2  · 45.0% C2H2F4  · 49.0% C3H2F4			0	687						102.4
HFO	R-457A	R-32/152a/1234yf (18.0%/12.0%/70.0%)	18.0% CH2F2  · 12.0% C2H4F2  · 70.0% C3H2F4	Forane 457a		0	139	A2L					92.6
HFC	R-458A	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	1,650						92.0
HFO	R-459A	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
HCFC	R-500	R-12/152a (73.8/26.2)	73.8% CCl2F2 · 26.2% C2H4F2	Carrene #7	74.1668	0.738	8,077	1,000 A1	30,000	120	99.3	−33/0	102.15	4,173
HCFC	R-501	R-22/12 (75/25)	75% CHClF2 · 25% CCl2F2		34	0.2875	4,083	1,000 A1	54,000	210	93.1	−41/−41	96.19	4,764
HCFC	R-502	R-22/115 (48.8/51.2)	48.8% CHClF2 · 51.2% C2F5Cl		876.256	0.24968	4,657	1,000 A1	73,000	330	111.6	−45/19	80.73	4,019
HCFC	R-503	R-23/13 (40.1/59.9)	40.1% CHF3 · 59.9% CClF3		491.63	0.599	14,560	1,000 A1?	40,000?	200?	87.2	−88/88	18.43	4,265
HCFC	R-504	R-32/115 (48.2/51.8)	48.2% CH2F2 · 51.8% C2F5Cl		882.9618	0.22792	4,143	1,000 A1?	140,000	450	79.2	−57/17	62.13	4,439
HCFC	R-505	R-12/31 (78/22)	78% CCl2F2 · 22% CH2FCl		78.0836+	0.7844	8,504+	350? B2?	10,000?	20?	103.5	−30/115	117.78	4,730
HCFC	R-506	R-31/114 (55.1/44.9)	55.1% CH2FCl · 44.9% C2F4Cl2		134.90938+	0.46002	4,495+	350? B2?	10,000?	20?	93.7	−12/18	142.22	5,157
HFC	R-507[A]	R-125/143a (50/50)	50% C2HF5 · 50% C2H3F3	AZ-50	40.5	0	3,985	1,000 A1	130,000	520	98.9	−46.7/−40	70.74	3,715
HFC	R-508[A]	R-23/116 (39/61)	39% CHF3 · 61% C2F6	Klea 5R3	6,205.3	0	13,214	1,000 A1	55,000	220	100.1	−86/−86	11.01	3,701
HFC	R-508B	R-23/116 (46/54)	46% CHF3 · 54% C2F6	Suva 95	5,524.2	0	13,396	1,000 A1	52,000	200	95.4	-88.3/−45.6	12.06	3,834
HCFC	R-509[A]	R-22/218 (44/56)	44% CHClF2 · 56% C3F8	Arcton TP5R2	1,461.28	0.022	5,741	1,000 A1	75,000	390	124	−47/0	87.22	4,033
HC	R-510[A]	R-E170/600a (88±.5/12±.5)	88±.5% C2H6O · 12±.5% C4H10		1.4532?	<0(smog)	1.24	1,000 A3	7,300	14	47.2	−25.2/−25.2
HC	R-511[A]	R-290/E170 (95±1/5±1)	95±1% C3H8 · 5±1% C2H6O		11.40075?	< 0(smog)	3.19	1,000 A3	5,300	9.5	44.2	−42.1/−20-40
HFO	R-513A	R-1234yf/134a (56%/44%)	56% C3H2F4  · 44% C2H2F4			0	573	A1			108.4	−29.4	96.5	3,766
HFO	R-514A	R-1336mzz-Z/trans-1,2-Dichloroethene(t-DCE)(74.7%/25.3%)	74.7% C4H2F6  · 25.3% C2H2CL2			0	2	B1			139.6	29.1	96.5	3,520
HFO	R-515B	R-1234ze/227ea					299
HC	R-600	Butane	C4H10 or CH3CH2CH2CH3	106-97-8	6.8 days	0	4.0–6.5	1,000 A3	4,000?	9.6?	58.1	0±1	152.01	3,796
HC	R-600a	Isobutane	C4H10 or CH(CH3)2CH3	75-28-5	12 ± 3	0	3	1,000 A3	4,000	9.6	58.1	−11.7	134.7	3,640
HC	R-601	Pentane	C5H12 or CH3CH2CH2CH2CH3	109-66-0	12 ± 3	0	4 ± 2	600 A3	1,000	2.9	72.1	36.1±.2	196.56	3,358
HC	R-601a	Isopentane	C5H12 or (CH3)2CHCH2CH3	78-78-4	12 ± 3	0	4 ± 2	600 A3	1,000	2.9	72.1	27.7	187.78	3,378
HC	R-610	Ethoxyethane (Diethyl ether)	CH3CH2OCH2CH3	60-29-7	12 ± 3	< 0(smog)	4 ± 2	400 A3?			74.1	34.6	193.65	3,640
HC	R-611	Methyl formate	HCOOCH3	107-31-3	12 ± 3	0	< 25	100 B2			60.1	32	213.55	6,000
	HC-12a	Propane/isobutane	40–70% C3H8 · 30–60% C4H6 (by volume)									−33
	HC-22a	Propane	C3H8 98% by volume									−42
	HC-502a	Propane/ethane	C3H8 60–100% · C2H6 3-7% (by volume)									−49
	DR−14A						415					−20.4	110.7	3,960
	SP34E	R-134a (98.5%)	C2H2F4 (98.5%)
	R-630	Methylamine	CH3NH2	74-89-5							31.1	−6	156.89	7,460
	R-631	Ethylamine	CH3CH2(NH2)	75-04-7							45.1	16.6	183	5,620
	R-702	Hydrogen	H2	1333-74-0			5.8	A3			2.016	−252.87	−239.95	1,300
	R-704	Helium	He	7440-59-7	Unlimited	0	0	9,340? A1			4.002	−268.93	−267.96	227
	R-717	Ammonia	NH3	7664-41-7	< 0.019165	0	0	25 B2L	320	0.22	17.03	−33.34	132.4	11,280
	R-718	Water/Steam	H2O	7732-18-5	0.026	0	0.2 ± 0.2	A1			18.02	100	373.946	22,060
	R-720	Neon	Ne	7440-01-9	Unlimited	0	0	9,340? A1			20.18	−246.08	−228.75	2,760
	R-728	Nitrogen	N2	7727-37-9	Unlimited	0	0	A1			28.01	−195.79	−146.9	3,390
	R-729	Air N2/O2/Ar (78.082/20.945/.934 vol%)	78.082% N2 · 20.945% O2 · .934% Ar		Unlimited	0	0.00054+	A1?			28.97	−192.97?	−140.53	3,785
	R-732	Oxygen	O2	7782-44-7	Unlimited	< 0	0	A1?			32	−182.95	−118.6	5,050
	R-740	Argon	Ar	7440-37-1	Unlimited	0	0	9,340? A1			39.95	−185.85	−122.4	4,870
	R-744	Carbon dioxide	CO2	124-38-9	29,300-36,100	0	1	5,000 A1	40,000	72	44	−78	31.04	7,380
	R-744A	Nitrous oxide	N2O	10024-97-2	114	0.017	265	A1?			44	−88.48	36.4	7,240
	R-764	Sulfur dioxide	SO2	7446-09-5				5 B1	100	0.262	64.1	−10	157.65	7,880
	R-784	Krypton	Kr	7439-90-9	Unlimited	0	0	9,340? A1?			83.80	−153.22	−63.8	5,500
CFO	R-1112a	1,1-Dichloro-2,2-difluoroethylene	C2Cl2F2	79-35-6							132.9
CFO	R-1113	Chlorotrifluoroethylene	C2ClF3	79-38-9							116.5	−27.8
PFO	R-1114	Tetrafluoroethylene	C2F4	116-14-3		0					100	−76.3
HCO	R-1120	Trichloroethylene (trielene)	C2HCl3	79-01-6							131.4	87.2	297.78	4,909
HCO	R-1130	cis-1,2-Dichloroethylene	C2H2Cl2	156-59-2		0	< 25				96.9	60.3	243.28	5,481
HFO	R-1132a	1,1-Difluoroethylene	C2H2F2	75-38-7		0					64	−83	29.7	4,458
HCO	R-1140	Chloroethylene (vinyl chloride)	C2H3Cl	75-01-4				100? B3			62.5	−13.4	151.83	5,150
HFO	R-1141	Fluoroethylene (vinyl fluoride)	C2H3F	75-02-5		0					46	−72.2
HO	R-1150	Ethene (Ethylene)	CH2=CH2	74-85-1	12 ± 3	< 0(smog)	3.7	200 A3			28.05	−103.7	9.19	5,040
PFO	R-1216	Hexafluoropropylene	C3F6	116-15-4	1,000+	0	17,340+				150	−28
PFO	R-1218	Hexafluoropropene trimer	(C3F6)3	6792-31-0		0					450.1
HCFO	R-1224yd	(Z)-2,3,3,3,-Tetrafluoro-1-Chloropropene	(Z)-CF3-CF=CHCl	111512-60-8
HCFO	R-1233zd	1-Chloro-3,3,3-trifluoropropene	C3H2ClF3	2730-43-0	0.0712328	0	1				130.5	19
HFO	R-1234yf	2,3,3,3-Tetrafluoropropene	C3H2F4	754-12-1	0.030116	0	4	500 A2L	16,000	75	114	−29.4
HFO	R-1234ze(E)	trans-1,3,3,3-tetrafluoropropene	C3H2F4	29118-24-9		0	6	800 A2L	16,000	75	114	−19.0
HO	R-1270	Propene (Propylene)	C3H6 or CH3CH=CH2	115-07-1	12 ± 3	< 0(smog)	1.8	500 A3	1,000	1.7	42.1	−47.6	92.42	4,665
HFO	HFO-1336mzz-E	trans-1,1,1,4,4,4-hexafluoro-2-butene	C4H2F6	66711-86-2		0	18					7.5	137.7	3,150
HFO	HFO-1336mzz-Z (R1336mzz-Z) (DR-2)	cis-1,1,1,4,4,4-hexafluoro-2-butene	CF3CH=CHCF3(Z)	692-49-9		0	2	A1				37.4	171.3	2,900
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 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 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 Hydroolefin (Alkene) PFC Perfluorocarbon F, C PFO Perfluoroolefin PCC Perchlorocarbon Cl, C PCO Perchloroolefin H Halon/Haloalkane Br, Cl (in some but not all), F, H (in some but not all), C

Safety Classification of Refrigerants Flammability in Air @ 60 °C & 101.3 kPa ASHRAE 34 Safety group Higher Flammability LFL or ETFL60 = 100 g/m3 OR HOC = 19 MJ/kg A3 B3 Lower Flammability LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg A2 B2 Lower Flammability LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg with a maximum burning velocity of = 10 cm/s A2L B2L No flame Propagation A1 B1 Flammability in Air @ 60 °C & 101.3 kPa Lower 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

• Haloalkane
• Refrigerant