... gas R22 Physical Properties Molecular Weight85.47Normal boiling Point, °C-40.8Critical Temperature, °C96.2Critical Pressure, Mpa4.99Specific Heat of ... Liquid, 30°C, [KJ/(kg°C)]0.31Ozone Depletion Potential(ODP)0.034Global Warming ... Potential(GWP)1700Density(kg/m3), Sat. Liquid @ 30 °C 1177Safety data:It has the chatacteristics of nontoxicity, odourlessness, ...