... C -40.82 Relative Density(30°C), liquid, g/cm3 1.177 Melting Point, °C -160.00 Critical Temperature, °C ... Warming Potency(GWP) 1700 Freezing point 30°C - Specific heat of liquid 30°C , [KJ/(Kg·°C)] 0.31 ... of saturated liquid 30°C , (g/cm3 ) 1.174 Specific heat of e quipressure vapor(Cp) , 30°Cand 101. ... 0.16 Critical density , g/cm3 0.526 Vaporization heat below boiling point , KJ/Kg 233.5 Quality Index ...