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Refrigerant Safety Profile

Health
Class  A : rating indicates no evidence of toxicity below 400 ppm. Lower Toxicity
Class   B : rating indicates evidence of toxicity below 400 ppm. Higher Toxicity

Flammability
Class  1 : Refrigerant which will not propagate a flame under normal conditions in open air.
Class   2 : Refrigerant may propagate a flame under certain conditions in open air. 
Class  3 : Refrigerant is highly flammable. 

R Chemical Name Formula Mass Boiling 
Point C
Boiling
Point F
Safety
Group
10 tetrachloromethane (carbon tetrachloride) CCl4 153.8 77 171 B1
11 trichlorofluoromethane CCl3F 137.4 24 75 A1
12 dichlorodifluoromethane CCl2F2 120.9 -30 -22 A1
12B1 bromochlorodifluoromethane CBrClF2 165.4 -4 25  
12B2 dibromodifluoromethane CBr2F2 209.8 25 77  
13 chlorotrifluoromethane CClF3 104.5 -81 -115 A1
13B1 bromotrifluoromethane CBrF3 148.9 -58 -72 A1
14 tetrafluoromethane (carbon tetrafluoride) CF4 88.0 -128 -198 A1
20 trichloromethane (chloroform) CHCl3 119.4 61 142  
21 dichlorofluoromethane CHCl2F 102.9 9 48  
22 chlorodifluoromethane CHClF2 86.5 -41 -41 A1
22B1 bromodifluoromethae CHBrF2 130.9 -15 5  
23 trifluoromethane CHF3 70.0 -82 -116 A1
30 dichloromethane (methylene chloride) CH2Cl2 84.9 40 104 B2
31 cholrofluoromethane CH2ClF 68.5 -9 16  
32 difluoromethane (methylene fluoride) CH2F2 52.0 -52 -62 A2
40 chloromethane (methyl chloride) CH3Cl 50.5 -24 -12 B2
41 fluoromethane (methyl fluoride) CH3F 34.0 -78 -108  
50 methane CH4 16.0 -161 -259 A3
110 hexachloroethane CCll3CCl3 236.8 185 365  
111 pentachlorofluoroethane CCl3CCl2F 220.3 135 275  
112 1,1,2,2-tetrachloro-1,2-difluoroethane CCl2FCCl2F 203.8 93 199  
112a 1.1.1.2-tetrachloro-2,2-difluoroethane CCl3CClF2 203.8 91 196  
113 1,1,2-trichloro-1,2,2-trifluoroethane CCl2FCClF2 187/4 48 118 A1
113a 1,1,1-trichloro-2,2,2-trifluoroethane CCl3CF3 187.4 46 115  
114 1,2-dichloro-1,1,2,2-tetrafluoroethane CClF2CClF2 170.9 4 38 A1
114a 1,1-dichloro-1,2,2,2-tetrafluoroethane CCl2FCF3 170.9 3 37  
114B2 1,2-dibromo 1.1.2.2-tetrafluoroethane CBrF2CBrF2 259.9 47 117  
115 chloropentafluoroethane CClF2CF3 154.5 -39 -38 A1
116 hexafluoroethane CF3CF3 138.0 -78 -109 A1
120 pentachloroethane CHCl2CCl3 202.3 162 324  
123 2,2-dichloro-1,1,1-trifluoroethane CHCl2CF3 153.0 27 81 B1
123a 1,2-dichloro-1,1,2-trifluoroethane CHClFCClF2 153.0 28 82  
124 2-chloro-1,1,1,2-tetrafluorethane CHClFCF3 136.5 -12 10 A1
124a 1-chloro-1,1,2,2-tetrafluoroethane CClF2CHF2 136.5 -10 14  
125 pentafluoroethane CHF2CF3 120.0 -49 -56 A1
133a 2-chloro-1,1,1-trifluoroethane CH2ClCF3 118.5 6 43  
134a 1,1,1,2-tetrafluoroethane CF3CH2F 102.0 -26 -15 A1
140a 1,1,1-trichloroethane (methyl chloroform) CCl3CH3 133.4 74 165  
141b 1,1-dichloro-1-fluoroethane CCl2FCH3 117.0 32 90  
142b 1-chloro-1,1-difluoroethane CClF2CH3 100.5 -10 14 A2
143a 1,1,1-trifluoroethane CF3CH3 84.0 -47 -53 A2
150a 1,1-dichloroethane CHCl2CH3 99.0 57 135  
152a 1,1-difluoroethane CHF2CH3 66.0 -25 -13 A2
160 chloroethane (ethyl chloride) CH3CH2Cl 64.5 12 54  
170 ethane CH3CH3 30.0 -89 -128 A3
216ca 1,3-dichloro-1,1,2,2,3,3-hexafluoropropane CClF2CF2CClF2 221.0 36 97  
218 octafluoroproprane CF3CF2CF3 118.0 -37 -35 A1
245cb 1,1,1,2,2-pentafluoropropane CF3CF2CH3 134.0 -18 0  
290 propane CH3CH2CH3 44.0 -42 -44 A3
C316 1,2-dichloro-1,2,3,3,4,4-hexafluorocyclobutane C4Cl2F6 233.0 60 100  
C317 chloroheptafluorocyclobutane C4ClF7 216.5 26 79  
C318 octafluorocyclobutane C4F8 200.0 -6 21 A1
600 butane CH3CH2CH2CH3 58.1 0 31 A3
600a 2-methyl propane (isobutane) CH(CH3)3 58.1 -12 11 A3
610 ethyl ether C2H5OC2H5 74.1 35 94  
611 methyl formate HCOOCH3 60.0 32 89 B2
630 methyl amine CH3NH2 31.1 -7 20  
631 ethyl amine C2H5NH2 45.1 17 62  
702 hydrogen H2 2.0 -253 -423 A3
704 helium He 4.0 -269 -452 A1
717 ammonia NH3 17.0 -33 28 B2
718 water H2O 18.0 100 212 A1
720 neon Ne 20.2 -246 -411 A1
728 nitrogen N2 28.1 -196 -320 A1
732 oxygen O2 32.0 -183 -297  
740 argon Ar 39.9 -186 -303 A1
744 carbon dioxide CO2 44.0 -78 -109 A1
744A nitrous oxide N2O 44.0 -90 -129  
764 sulfur dioxide SO2 64.1 -10 14 B1
1112a 1,1-dichloro-2,2-difluoroethene CCl2=CF2 133.0 19 66  
1113 1-chloro-1,2,2-trifluoroethene CClF=CF2 116.5 -28 -18  
1114 tetrafluoroethene CF2=CF2 100-0 -76 -105  
1120 trichloroethene CHCl-CCl2 131.4 87 189  
1130 1,2-dichloroethene (trans) CHCl=CHCl 96.9 48 118  
1132a 1,1-difluoroethene (vinylidene fluoride) CF2=CH2 64.0 -82 -116  
1140 1-chloroethene (vinyl chloride) CHCl-CH2 62.5 -114 7 B3
1141 1-fluoroethen (vinyl fluoride) CHF=CH2 46.0 -72 -98  
1150 ethene (ethylene) CH2=CH2 28.1 -104 -155 A3
1270 propene (propylene) CH3CH=CH2 42.1 -48 -54 A3
Zeotropes
400 R-12/114 (percent not specified)         A1/A1
401A R-22/152a/124 (53/13/34)         A1/A1
401B R-22/152a/124 (61/11/28)         A1/A1
410C R-22/152a/124 (33/15/52)         A1/A1
402A R-125/290/22 (60/2/38)         A1/A1
402B R-125/290/22 (38/2/60)         A1/A1
403A R-290/22/218 (5/75/20)         A1/A1
403B R-290/22/218 (5/56/39)         A1/A1
404A R-125/143a/134a (44/52/4)         A1/A1
405A R-22/152a/142b/C318 (45/7/5.5/42.5)         A1/A1
406A R-22/600a/142b (55/4/41)         A1/A2
407A R-32/125/134a (20/40/40)         A1/A1
407B R-32/125/134a (10/70/20)         A1/A1
407C R-32/125/134a (23/25/52)         A1/A1
407D R-32/125/134a (15/5/70)         A1/A1
408A R-125/143a/22 (7/46/47)         A1/A1
409A R-22/124/142b (60/25/15)         A1/A1
409B R-22/124/142b (65/25/10)         A1/A1
410A R-32/125 (50/50)         A1/A1
410B R-32/125 (45/55)         A1/A1
411A R-1270/22/152a (1.5/87.5/11.0)         A1/A2
411B R-1270/22/152a (3/94/3)         A1/A2
412A R-22/218/142b (70/5/25)         A1/A2
Azeotropes
500 R-12/152a (73.8/26.2)     -33 -27 A1
501 R-22/12 (75/25)     -41 -42 A1
502 R-22/115 (48.8/51.2)     -45 -49 A1
503 R-023/13 (40.1/59.9)     -88 -126  
504 R-32/115 (48.2/51.8)     -57 -71  
505 R-12/31 (78/22)     -30 -22  
506 R-31/114 (55.1/44.9)     -12 10  
507A R-125/143a (50/50)     -46 -52 A1
508A R-23/116 (39/61)     -86 -122 A1
508B R-23/116 (49/54)     -88 -126 A1/A1
509A R-22/218 (44/56)     -47 -53 A1