List of refrigerants

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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).

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 massu Boiling, or bubble/dew/azeotropic point(s) °C Critical temp.°C Critical pressure, absolutekPaPCCR 10Carbon tetrachloride (Tetrachloromethane)CCl456 23 5261000 17604640< 0(smog)5.5 0.40(E), 0.49(Z)1000AZ 20,R 448AR 32/125/134a/1234ze/1234yf
(26%/26%/21%/7%/20%)83.701282 Solstice L41y0676017650239 Puron Advance0466014801460139A2L92.0HFOR 459AR 32/1234yf(E)/1234ze(E) (68.0%/26.0%/6.0%)68.0% CH2F2 26.0% C3H2F4 6.0% C3H2F4Forane 459a074.7% C4H2F6 25.3% C2H2CL202B1139.629.196.53520HFOR 515BR 1234ze/227ea 299HCR 600ButaneC4H10 or CH3CH2CH2CH3106 97 86.8 days40–70% C3H8 · 30–60% C4H6 (by volume)−33HCHC 22aPropane415−20.4110.73,960HFCSP34ER 134a (98.5%)C2H2F4 (98.5%)R 630MethylamineCH3NH274 89 5(Z) CF3 CF=CHCl111512 60 8HCFOR 1233zd(E)trans 1 chloro 3,3,3 trifluoropropeneC3H2ClF3102687 65 00.0712328cis 1,1,1,4,4,4 hexafluoro 2 butene CF3CH=CHCF3(Z)692 49 902A137.4171.32,900 Type 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 massu Boiling, or bubble/dew/azeotropic point(s) °C Critical temp.°C Critical pressure, absolutekPa ppm (v/v) g/m3