)index of refraction: ; ( )molar refractivity: cm ; ( )molar volume: cm ; ( )surface tension: dyne/cm; ( )density: g/cm ; ( )flash point: °c; ( )enthalpy of vaporization: kj/mol; ( )boiling point: °c at mmhg; ( )vapour pressure: mmhg at °c. uses of , , , -pentafluoropropane: ( ) it is used for refrigerators...