Refrigerant Solutions - the refrigerant specalists

RS-44 Physical Properties

    RS-44 R22
Molecular weight   108.1 86.5
Boiling point (1 atm) °C -38.7(1) -40.4
°F -37.6(1) -41.4
Critical temperature °C 88.8 96.1
°F 191.8 204.8
Critical pressure bara 40.4 49.9
psia 586 724
Liquid density at 25°C kg/m³ 1169 1191
Density of saturated vapour at 25°C kg/m³ 43.6 44.2
Latent heat of vaporisation at boiling point kJ/kg 196(1) 234(1)
Cv at 25°C and 1 bara kJ/kg.K 0.765 0.559
Cp at 25°C and 1 bara kJ/kg.K 0.85 0.662
Cp/Cv at 25°C and 1 bara   1.111 1.185
Vapour pressure at 25°C bara 9.67(1) 10.4
psia 140.2(1) 151
Vapour viscosity at 25°C and 1 bara cP 0.0122 0.0126
Liquid viscosity at 25°C cP 0.167 0.166
Liquid thermal conductivity at 25°C W/m.K 0.072 0.0837
Surface tension at 25°C N/m 0.00656 0.00808
Specific heat of liquid at 25°C kJ/kg.K 1.43 1.26
Ozone Depletion Potential ODP 0 0.055
Flammability limit in air (1 atm) vol% None None
Inhalation exposure (8 hr day and 40 hr week) ppm 1000 1000

(1) Bubble point