List of refrigerants

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Chemical refrigerants are assigned an R number (sometimes the label replaces it with the word Freon) which is determined systematically according to molecular structure. The following is a list of refrigerants with their ASHRAE designated numbers, IUPAC chemical name, molecular formula, and CAS number.

ASHRAE Number Name Formula CAS number
R-10 Tetrachloromethane CCl4 56-23-5
R-11 Trichlorofluoromethane CCl3F 75-69-4
R-12 Dichlorodifluoromethane CCl2F2 75-71-8
R-12B1 Bromochlorodifluoromethane CBrClF2 353-59-3
R-12B2 Dibromodifluoromethane CBr2F2 75-61-6
R-13 Chlorotrifluoromethane CClF3 75-72-9
R-13B1 Bromotrifluoromethane CF3Br 75-63-8
R-14 Carbon tetrafluoride CF4 75-73-0
R-20 Trichloromethane CHCl3 67-66-3
R-21 Dichlorofluoromethane CHFCl2 75-43-4
R-22 Chlorodifluoromethane CHClF2 75-45-6
R-22B1 Bromodifluoromethane CHBrF2 1511-62-2
R-23 Trifluoromethane CHF3 75-46-7
R-30 Dichloromethane CH2Cl2 75-09-2
R-31 Chlorofluoromethane CH2FCl 593-70-4
R-32 Difluoromethane CH2F2 75-10-5
R-40 Chloromethane CH3Cl 74-87-3
R-41 Fluoromethane CH3F 593-53-3
R-50 Methane CH4 74-82-8
R-110 Hexachloroethane C2Cl6 67-72-1
R-111 Pentachlorofluoroethane C2FCl5 354-56-3
R-112 1,1,2,2-Tetrachloro-1,2-difluoroethane C2F2Cl4 76-12-0
R-112a 1,1,1,2-Tetrachloro-2,2-difluoroethane C2F2Cl4 76-11-9
R-113 1,1,2-Trichlorotrifluoroethane C2F3Cl3 76-13-1
R-113a 1,1,1-Trichlorotrifluoroethane C2F3Cl3 354-58-5
R-114 1,2-Dichlorotetrafluoroethane C2F4Cl2 76-14-2
R-114a 1,1-Dichlorotetrafluoroethane C2F4Cl2 374-07-2
R-114B2 Dibromotetrafluoroethane C2F4Br2 124-73-2
R-115 Chloropentafluoroethane C2F5Cl 76-15-3
R-116 Hexafluoroethane C2F6 76-16-4
R-120 Pentachloroethane C2HCl5 76-01-7
R-121 1,1,2,2-Tetrachloro-1-fluoroethane C2HFCl4 354-14-3
R-121a 1,1,1,2-Tetrachloro-2-fluoroethane C2HFCl4 354-11-0
R-122 1,1,2-Trichloro-2,2-difluoroethane C2HF2Cl3 354-21-2
R-122a 1,1,2-Trichloro-1,2-difluoroethane C2HF2Cl3 354-15-4
R-122b 1,1,1-Trichloro-2,2-difluoroethane C2HF2Cl3 354-12-1
R-123 2,2-Dichloro-1,1,1-trifluoroethane C2F3Cl2 306-83-2
R-123a 1,2-Dichloro-1,1,2-trifluoroethane C2F3Cl2 354-23-4
R-123b 1,1-Dichloro-1,2,2-trifluoroethane C2F3Cl2 812-04-4
R-124 2-Chloro-1,1,1,2-tetrafluoroethane C2HF4Cl 2837-89-0
R-124a 1-Chloro-1,1,2,2-tetrafluoroethane C2HF4Cl 354-25-6
R-125 Pentafluoroethane C2HF5 354-33-6
R-E125 (Difluoromethoxy)(trifluoro)methane C2HF5O 3822-68-2
R-130 1,1,2,2-Tetrachloroethane C2H2Cl4 79-34-5
R-130a 1,1,1,2-Tetrachloroethane C2H2Cl4 630-20-6
R-131 1,1,2-trichloro-2-fluoroethane C2H2FCl3 359-28-4
R-131a 1,1,2-trichloro-1-fluoroethane C2H2FCl3 811-95-0
R-131b 1,1,1-trichloro-2-fluoroethane C2H2FCl3 2366-36-1
R-132 Dichlorodifluoroethane C2H2F2Cl2 25915-78-0
R-132a 1,1-Dichloro-2,2-difluoroethane C2H2F2Cl2 471-43-2
R-132b 1,2-Dichloro-1,1-difluoroethane C2H2F2Cl2 1649-08-7
R-132c 1,1-Dichloro-1,2-difluoroethane C2H2F2Cl2 1842-05-3
R-132bB2 1,2-Dibromo-1,1-difluoroethane C2H2Br2F2 75-82-1
R-133 1-Chloro-1,2,2-Trifluoroethane C2H2F3Cl 431-07-2
R-133a 1-Chloro-2,2,2-Trifluoroethane C2H2F3Cl 75-88-7
R-133b 1-Chloro-1,1,2-Trifluoroethane C2H2F3Cl 421-04-5
R-134 1,1,2,2-Tetrafluoroethane C2H2F4 359-35-3
R-134a 1,1,1,2-Tetrafluoroethane C2H2F4 811-97-2
R-E134 Bis(difluoromethyl)ether C2H2F4O 1691-17-4
R-140 1,1,2-Trichloroethane C2H3Cl3 79-00-5
R-140a 1,1,1-Trichloroethane C2H3Cl3 71-55-6
R-141 1,2-Dichloro-1-fluoroethane C2H3FCl2 430-57-9
R-141B2 1,2-Dibromo-1-fluoroethane C2H3Br2F 358-97-4
R-141a 1,1-Dichloro-2-fluoroethane C2H3FCl2 430-53-5
R-141b 1,1-Dichloro-1-fluoroethane C2H3FCl2 1717-00-6
R-142 Chlorodifluoroethane C2H3F2Cl 25497-29-4
R-142a 1-Chloro-1,2-difluoroethane C2H3F2Cl 25497-29-4
R-142b 1-Chloro-1,1-difluoroethane C2H3F2Cl 75-68-3
R-143 1,1,2-Trifluoroethane C2H3F3 430-66-0
R-143a 1,1,1-Trifluoroethane C2H3F3 420-46-2
R-143m Methyl trifluoromethyl ether C2H3F3O 421-14-7
R-E143a 2,2,2-Trifluoroethyl methyl ether C3H5F3O 460-43-5
R-150 1,2-Dichloroethane C2H4Cl2 107-06-2
R-150a 1,1-Dichloroethane C2H4Cl2 75-34-3
R-151 Chlorofluoroethane C2H4ClF 110587-14-9
R-151a 1-Chloro-1-fluoroethane C2H4ClF 1615-75-4
R-152 1,2-Difluoroethane C2H4F2 624-72-6
R-152a 1,1-Difluoroethane C2H4F2 75-37-6
R-160 Chloroethane C2H5Cl 75-00-3
R-161 Fluoroethane C2H5F 353-36-6
R-170 Ethane C2H6 74-84-0
R-211 1,1,1,2,2,3,3-Heptachloro-3-fluoropropane C3FCl7 422-78-6
R-212 Hexachlorodifluoropropane C3F2Cl6 76546-99-3
R-213 1,1,1,3,3-Pentachloro-2,2,3-trifluoropropane C3F3Cl5 2354-06-5
R-214 1,2,2,3-Tetrachloro-1,1,3,3-tetrafluoropropane C3F4Cl4 2268-46-4
R-215 1,1,1-Trichloro-2,2,3,3,3-pentafluoropropane C3F5Cl3 4259-43-2
R-216 1,2-Dichloro-1,1,2,3,3,3-hexafluoropropane C3F6Cl2 661-97-2
R-216ca 1,3-Dichloro-1,1,2,2,3,3-hexafluoropropane C3F6Cl2 662-01-1
R-217 1-Chloro-1,1,2,2,3,3,3-heptafluoropropane C3F7Cl 422-86-6
R-217ba 2-Chloro-1,1,1,2,3,3,3-heptafluoropropane C3F7Cl 76-18-6
R-218 Octafluoropropane C3F8 76-19-7
R-221 1,1,1,2,2,3-Hexachloro-3-fluoropropane C3HFCl6 422-26-4
R-222 Pentachlorodifluoropropane C3HF2Cl5 134237-36-8
R-222c 1,1,1,3,3-Pentachloro-2,2-difluoropropane C3HF2Cl5 422-49-1
R-223 Tetrachlorotrifluoropropane C3HF3Cl4 134237-37-9
R-223ca 1,1,3,3-Tetrachloro-1,2,2-trifluoropropane C3HF3Cl4 422-52-6
R-223cb 1,1,1,3-Tetrachloro-2,2,3-trifluoropropane C3HF3Cl4 422-50-4
R-224 Trichlorotetrafluoropropane C3HF4Cl3 134237-38-0
R-224ca 1,3,3-Trichloro-1,1,2,2-tetrafluoropropane C3HF4Cl3 422-54-8
R-224cb 1,1,3-Trichloro-1,2,2,3-tetrafluoropropane C3HF4Cl3 422-53-7
R-224cc 1,1,1-Trichloro-2,2,3,3-tetrafluoropropane C3HF4Cl3 422-51-5
R-225 Dichloropentafluoropropane C3HF5Cl2 127564-92-5
R-225aa 2,2-Dichloro-1,1,1,3,3-pentafluoropropane C3HF5Cl2 128903-21-9
R-225ba 2,3-Dichloro-1,1,1,2,3-pentafluoropropane C3HF5Cl2 422-48-0
R-225bb 1,2-Dichloro-1,1,2,3,3-pentafluoropropane C3HF5Cl2 422-44-6
R-225ca 3,3-Dichloro-1,1,1,2,2-pentafluoropropane C3HF5Cl2 422-56-0
R-225cb 1,3-Dichloro-1,1,2,2,3-pentafluoropropane C3HF5Cl2 507-55-1
R-225cc 1,1-Dichloro-1,2,2,3,3-pentafluoropropane C3HF5Cl2 13474-88-9
R-225da 1,2-Dichloro-1,1,3,3,3-pentafluoropropane C3HF5Cl2 431-86-7
R-225ea 1,3-Dichloro-1,1,2,3,3-pentafluoropropane C3HF5Cl2 136013-79-1
R-225eb 1,1-Dichloro-1,2,3,3,3-pentafluoropropane C3HF5Cl2 111512-56-2
R-226 Chlorohexafluoropropane C3HF6Cl 134308-72-8
R-226ba 2-Chloro-1,1,1,2,3,3-hexafluoropropane C3HF6Cl 51346-64-6
R-226ca 3-Chloro-1,1,1,2,2,3-hexafluoropropane C3HF6Cl 422-57-1
R-226cb 1-Chloro-1,1,2,2,3,3-hexafluoropropane C3HF6Cl 422-55-9
R-226da 2-Chloro-1,1,1,3,3,3-hexafluoropropane C3HF6Cl 431-87-8
R-226ea 1-Chloro-1,1,2,3,3,3-hexafluoropropane C3HF6Cl 359-58-0
R-227ca 1,1,2,2,3,3,3-Heptafluoropropane C3HF7 2252-84-8
R-227ca2 Trifluoromethyl 1,1,2,2-tetrafluoroethyl ether C3HF7O 2356-61-8
R-227ea 1,1,1,2,3,3,3-Heptafluoropropane C3HF7 431-89-0
R-227me Trifluoromethyl 1,2,2,2-tetrafluoroethyl ether C3HF7O 2356-62-9
R-231 Pentachlorofluoropropane C3H2FCl5 134190-48-0
R-232 Tetrachlorodifluoropropane C3H2F2Cl4 134237-39-1
R-232ca 1,1,3,3-Tetrachloro-2,2-difluoropropane C3H2F2Cl4 1112-14-7
R-232cb 1,1,1,3-Tetrachloro-2,2-difluoropropane C3H2F2Cl4 677-54-3
R-233 Trichlorotrifluoropropane C3H2F3Cl3 134237-40-4
R-233ca 1,1,3-Trichloro-2,2,3-trifluoropropane C3H2F3Cl3 131221-36-8
R-233cb 1,1,3-Trichloro-1,2,2-trifluoropropane C3H2F3Cl3 421-99-8
R-233cc 1,1,1-Trichloro-2,2,3-trifluoropropane C3H2F3Cl3 131211-71-7
R-234 Dichlorotetrafluoropropane C3H2F4Cl2 127564-83-4
R-234aa 2,2-Dichloro-1,1,3,3-tetrafluoropropane C3H2F4Cl2 17705-30-5
R-234ab 2,2-Dichloro-1,1,1,3-tetrafluoropropane C3H2F4Cl2 149329-24-8
R-234ba 1,2-Dichloro-1,2,3,3-tetrafluoropropane C3H2F4Cl2 425-94-5
R-234bb 2,3-Dichloro-1,1,1,2-tetrafluoropropane C3H2F4Cl2 149329-25-9
R-234bc 1,2-Dichloro-1,1,2,3-tetrafluoropropane C3H2F4Cl2 149329-26-0
R-234ca 1,3-Dichloro-1,2,2,3-tetrafluoropropane C3H2F4Cl2 70341-81-0
R-234cb 1,1-Dichloro-2,2,3,3-tetrafluoropropane C3H2F4Cl2 4071-01-6
R-234cc 1,3-Dichloro-1,1,2,2-tetrafluoropropane C3H2F4Cl2 422-00-5
R-234cd 1,1-Dichloro-1,2,2,3-tetrafluoropropane C3H2F4Cl2 70192-63-1
R-234da 2,3-Dichloro-1,1,1,3-tetrafluoropropane C3H2F4Cl2 146916-90-7
R-234fa 1,3-Dichloro-1,1,3,3-tetrafluoropropane C3H2F4Cl2 76140-39-1
R-234fb 1,1-Dichloro-1,3,3,3-tetrafluoropropane C3H2F4Cl2 64712-27-2
R-235 Chloropentafluoropropane C3H2F5Cl 134237-41-5
R-235ca 1-Chloro-1,2,2,3,3-pentafluoropropane C3H2F5Cl 28103-66-4
R-235cb 3-Chloro-1,1,1,2,3-pentafluoropropane C3H2F5Cl 422-02-6
R-235cc 1-Chloro-1,1,2,2,3-pentafluoropropane C3H2F5Cl 679-99-2
R-235da 2-Chloro-1,1,1,3,3-pentafluoropropane C3H2F5Cl 134251-06-2
R-235fa 1-Chloro-1,1,3,3,3-pentafluoropropane C3H2F5Cl 677-55-4
R-236cb 1,1,1,2,2,3-Hexafluoropropane C3H2F6 677-56-5
R-236ea 1,1,1,2,3,3-Hexafluoropropane C3H2F6 431-63-0
R-236fa 1,1,1,3,3,3-Hexafluoropropane C3H2F6 690-39-1
R-236me 1,2,2,2-Tetrafluoroethyl difluoromethyl ether C3H2F6O 57041-67-5
R-FE-36 Hexafluoropropane C3H2F6 359-58-0
R-241 Tetrachlorofluoropropane C3H3FCl4 134190-49-1
R-242 Trichlorodifluoropropane C3H3F2Cl3 134237-42-6
R-243 Dichlorotrifluoropropane C3H3F3Cl2 134237-43-7
R-243ca 1,3-Dichloro-1,2,2-trifluoropropane C3H3F3Cl2 67406-68-2
R-243cb 1,1-Dichloro-2,2,3-trifluoropropane C3H3F3Cl2 70192-70-0
R-243cc 1,1-Dichloro-1,2,2-trifluoropropane C3H3F3Cl2 7125-99-7
R-243da 2,3-Dichloro-1,1,1-trifluoropropane C3H3F3Cl2 338-75-0
R-243ea 1,3-Dichloro-1,2,3-trifluoropropane C3H3F3Cl2 151771-08-3
R-243ec 1,3-Dichloro-1,1,2-trifluoropropane C3H3F3Cl2 149329-27-1
R-244 Chlorotetrafluoropropane C3H3F4Cl 134190-50-4
R-244ba 2-Chloro-1,2,3,3-tetrafluoropropane C3H3F4Cl
R-244bb 2-Chloro-1,1,1,2-tetrafluoropropane C3H3F4Cl 421-73-8
R-244ca 3-Chloro-1,1,2,2-tetrafluoropropane C3H3F4Cl 679-85-6
R-244cb 1-Chloro-1,2,2,3-tetrafluoropropane C3H3F4Cl 67406-66-0
R-244cc 1-Chloro-1,1,2,2-tetrafluoropropane C3H3F4Cl 421-75-0
R-244da 2-Chloro-1,1,3,3-tetrafluoropropane C3H3F4Cl 19041-02-2
R-244db 2-Chloro-1,1,1,3-tetrafluoropropane C3H3F4Cl 117970-90-8
R-244ea 3-Chloro-1,1,2,3-tetrafluoropropane C3H3F4Cl
R-244eb 1-Chloro-1,1,1,2-tetrafluoropropane C3H3F4Cl
R-244ec 1-Chloro-1,1,2,3-tetrafluoropropane C3H3F4Cl
R-244fa 3-Chloro-1,1,1,3-tetrafluoropropane C3H3F4Cl
R-244fb 1-Chloro-1,1,3,3-tetrafluoropropane C3H3F4Cl 2730-64-5
R-245ca 1,1,2,2,3-Pentafluoropropane C3H3F5 679-86-7
R-245cb Pentafluoropropane C3H3F5 1814-88-6
R-245ea 1,1,2,3,3-Pentafluoropropane C3H3F5 24270-66-4
R-245eb 1,1,1,2,3-Pentafluoropropane C3H3F5 431-31-2
R-245fa 1,1,1,3,3-Pentafluoropropane C3H3F5 460-73-1
R-245mc Methyl pentafluoroethyl ether C3H3F5O 22410-44-2
R-245mf Difluoromethyl 2,2,2-trifluoroethyl ether C3H3F5O 1885-48-9
R-245qc Difluoromethyl 1,1,2-trifluoroethyl ether C3H3F5O 69948-24-9
R-251 Trichlorofluoropropane C3H4FCl3 134190-51-5
R-252 Dichlorodifluoropropane C3H4F2Cl2 134190-52-6
R-252ca 1,3-Dichloro-2,2-difluoropropane C3H4F2Cl2 1112-36-3
R-252cb 1,1-Dichloro-2,2-difluoropropane C3H4F2Cl2 1112-01-2
R-252dc 1,2-Dichloro-1,1-difluoropropane C3H4F2Cl2
R-252ec 1,1-Dichloro-1,2-difluoropropane C3H4F2Cl2
R-253 Chlorotrifluoropropane C3H4F3Cl 134237-44-8
R-253ba 2-Chloro-1,2,3-trifluoropropane C3H4F3Cl
R-253bb 2-Chloro-1,1,2-trifluoropropane C3H4F3Cl
R-253ca 1-Chloro-2,2,3-trifluoropropane C3H4F3Cl 56758-54-4
R-253cb 1-Chloro-1,2,2-trifluoropropane C3H4F3Cl 70192-76-6
R-253ea 3-Chloro-1,1,2-trifluoropropane C3H4F3Cl
R-253eb 1-Chloro-1,2,3-trifluoropropane C3H4F3Cl
R-253ec 1-Chloro-1,1,2-trifluoropropane C3H4F3Cl
R-253fa 3-Chloro-1,3,3-trifluoropropane C3H4F3Cl
R-253fb 3-Chloro-1,1,1-trifluoropropane C3H4F3Cl 460-35-5
R-253fc 1-Chloro-1,1,3-trifluoropropane C3H4F3Cl
R-254cb 1,1,2,2-Tetrafluoropropane C3H4F4 40723-63-5
R-254pc Methyl 1,1,2,2-tetrafluoroethyl ether C3H4F4O 425-88-7
R-261 Dichlorofluoropropane C3H5FCl2 134237-45-9
R-261ba 1,2-Dichloro-2-fluoropropane C3H5FCl2 420-97-3
R-262 Chlorodifluoropropane C3H5F2Cl 134190-53-7
R-262ca 1-Chloro-2,2-difluoropropane C3H5F2Cl 420-99-5
R-262fa 3-Chloro-1,1-difluoropropane C3H5F2Cl
R-262fb 1-Chloro-1,3-difluoropropane C3H5F2Cl
R-263 Trifluoropropane C3H5F3
R-271 Chlorofluoropropane C3H6FCl 134190-54-8
R-271b 2-Chloro-2-fluoropropane C3H6FCl 420-44-0
R-271d 2-Chloro-1-fluoropropane C3H6FCl
R-271fb 1-Chloro-1-fluoropropane C3H6FCl
R-272 Difluoropropane C3H6F2
R-281 Fluoropropane C3H7F
R-290 Propane C3H8 74-98-6
R-C316 Dichlorohexafluorocyclobutane C4Cl2F6 356-18-3
R-C317 Chloroheptafluorocyclobutane C4ClF7 377-41-3
R-C318 Octafluorocyclobutane C4F8 115-25-3
R-3-1-10 Decafluorobutane C4F10
R-329ccb 375-17-7
R-338eea 75995-72-1
R-347ccd 662-00-0
R-347mcc Perfluoropropyl methyl ether C4H3F7O 375-03-1
R-347mmy Perfluoroisopropyl methyl ether C4H3F7O 22052-84-2
R-356mcf
R-356mffm
R-365mfc 1,1,1,3,3-Pentafluorobutane C4H5F5
FC-72 Tetradecafluorohexane C6F14 355-42-0
R-400 R-12/R-114 (60/40 wt%) binary blend
R-401A R-22/R-152a/R-124 (53/13/34)
R-401B R-22/R-152a/R-124 (61/11/28)
R-401C R-22/R-152a/R-124 (33/15/52)
R-402A R-125/R-290/R-22 (60/2/38)
R-402B R-125/R-290/R-22 (38/2/60)
R-403A R-290/R-22/R-218 (5/75/20)
R-403B R-290/R-22/R-218 (5/56/39)
R-404A R-125/R-143a/R-134a (44/52/4)
R-405A R-22/R-152a/R-142b/R-C318 (45/7/5.5/42.5)
R-406A R-22/R-600a/R-142b (55/04/41)
R-407A R-32/R-125/R-134a (20/40/40)
R-407B R-32/R-125/R-134a (10/70/20)
R-407C R-32/R-125/R-134a (23/25/52)
R-407D R-32/R-125/R-134a (15/15/70)
R-407E R-32/R-125/R-134a (25/15/60)
R-408A R-125/R-143a/R-22 (7/46/47)
R-409A R-22/R-124/R-142b (60/25/15)
R-409B R-22/R-124/R-142b (65/25/10)
R-410A R-32/R-125 (50/50)
R-410B R-32/R-125 (45/55)
R-411A R-1270/R-22/R-152a (1.5/87.5/11)
R-411B R-1270/R-22/R-152a (3/94/3)
R-412A R-22/R-218/R-142b (70/5/25)
R-413A R-218/R-134a/R-600a (9/88/3)
R-414A R-22/R-124/R-600a/R-142b (51/28.5/4.0/16.5)
R-414B R-22/R-124/R-600a/R-142b (50/39/1.5/9.5)
R-415A R-22/R-152a (82/18)
R-415B R-22/R-152a (25/75)
R-416A R-134a/R-124/R-600 (59/39.5/1.5)
R-417A R-125/R-134a/R-600 (46.6/50.0/3.4)
R-418A R-290/R-22/R-152a (1.5/96/2.5)
R-419A R-125/R-134a/R-E170 (77/19/4)
R-420A R-134a/R-142b (88/12)
R-421A R-125/R-134a (58/42)
R-421B R-125/R-134a (85/15)
R-422A R-125/R-134a/R-600a (85.1/11.5/3.4)
R-422B R-125/R-134a/R-600a (55/42/3)
R-422C R-125/R-134a/R-600a (82/15/3)
R-422D R-125/R-134a/R-600a (65.1/31.5/3.4)
R-423A R-134a/R-227ea (52.5/47.5)
R-424A R-125/R-134a/R-600a/R-600/R-601a (50.5/47/.9/1/.6)
R-425A R-32/R-134a/R-227ea (18.5/69.5/12)
R-426A R-125/R-134a/R-600/R-601a (5.1/93/1.3/.6)
R-427A R-32/R-125/R-143a/R-134a (15/25/10/50)
R-428A R-125/R-143a/R-290/R-600a (77.5/20/.6/1.9)
R-500 R-12/R-152a (73.8/26.2)
R-501 R-22/R-12 (75/25)
R-502 R-22/R-115 (48.8/51.2)
R-503 R-23/R-13 (40.1/59.9)
R-504 R-32/R-115 (48.2/51.8)
R-505 R-12/R-31 (78/22)
R-506 R-31/R-114 (55.1/44.9)
R-507A R-125/R-143a (50/50)
R-508A R-23/R-116 (39/61)
R-508B R-23/R-116 (46/54)
R-509A R-22/R-218 (44/56)
R-600 Butane CH3CH2CH2CH3 106-97-8
R-600a Isobutane CH(CH3)2CH3 75-28-5
R-601 Pentane CH3CH2CH2CH2CH3 109-66-0
R-601a Isopentane (CH3)2CHCH2CH3 78-78-4
R-610 Diethyl ether C2H5OC2H5 60-29-7
R-611 Methyl formate C2H4O 107-31-3
R-630 Methylamine CH2NH2 74-89-5
R-631 Ethylamine C2H5NH2 75-04-7
R-702 Hydrogen H2 1333-74-0
R-704 Helium He 7440-59-7
R-717 Ammonia NH3 7664-41-7
R-718 Water H2O 7732-18-5
R-720 Neon Ne 7440-01-9
R-728 Nitrogen N2 7727-37-9
R-732 Oxygen O2 7782-44-7
R-740 Argon Ar 7440–37–1
R-744 Carbon dioxide CO2 124-38-9
R-744A Nitrous oxide N2O 10024-97-2
R-764 Sulfur dioxide SO2 7446-09-5
R-784 Krypton Kr 7439-90-9
R-1112a 1,1-Dichloro-2,2-difluoroethylene C2Cl2F2 79-35-6
R-1113 Chlorotrifluoroethylene C2ClF3 79-38-9
R-1114 Tetrafluoroethylene C2F4 116-14-3
R-1120 Trichloroethylene C2HCl3 79-01-6
R-1130 cis-1,2-Dichloroethylene C2H2Cl2 156-59-2
R-1132 1,1-Difluoroethylene C2H2F2 75-38-7
R-1140 Chloroethylene C2H3Cl 75-01-4
R-1141 Fluoroethylene C2H3F 75-02-5
R-1150 Ethylene C2H4 74-85-1
R-1216 Hexafluoropropylene C3F6 116-15-4
R- Hexafluoropropene trimer (C3F6)3 6792-31-0
R-1270 Propylene C3H6 115-07-1

See also

External links

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