Product:azeotrope R502 Property of chloride :Molecular weight 111.6 BP, -45.4 Ice point - Critical temperature : 82.1 Critical pressure ,Mpa 4.07 Density of saturated liquid30 ,(g/cm3) 1.217 Specific heat of liquid 30 ,[KJ/(Kg?)] 1.25 Specific heat of equipressure steam(Cp),30 and 101.3kPa[KJ/(Kg?)]0.147 ODP 0.18 GWP 3.8~4.1 Critical density,g/cm3 0.566 Vaporization heat under BP,KJ/Kg 172.5 Packing:disposable steel cylinder13.6kg/30b,22.7kg/50b Quality standard :Purity%≥99.5 Moisture,PPm≤ 0.002 Acidity,PPm≤ 0.0001 Residue on evaporation ,PPm≤ 0.01 Appearance colorless , no cloudy Odor no smell Uses: high pure grade is R502 used as temperature sensing medium , premium grade and first grade R502 can used as refrigerant .