... .DOT, CE certification provided R134a Refrigerant Gas used in auto air-conditionerProperty of chloride : Molecular Weight 102.03 Boiling Point ... 101.1°C Critical Pressure: 4.05Mpa Specific Heat of Liquid, 30°C: 1.51 KJ/(kg•°C ... Colorless, No turbid Odor No Strange Stench Packing: Can of 220g, 250g, 280g, 300g, 340g, 500g, 800g, ... CFC-12 substitute. R22 R134a Refrigerant Gas used in auto air-conditioner