... .82 Relative Density(30°C), liquid, g/cm3 1.177 Melting Point, °C -160.00 Critical Temperature, °C 96.15 Critical Pressure ... Potency(ODP) 0.045 Global Warming Potency(GWP) 1700 Freezing point 30°C - Specific heat of liquid 30°C , [KJ/(Kg ... Critical density , g/cm3 0.526 Vaporization heat below boiling point , KJ/Kg 233.5 Quality Index (GB7373-87) Grade Excellent ...