Hudson Technology Refrigerant, Composition: 1,1,1,2-Tetrafluoroethane, Difluoromethane, Pentafluoroethane, Liquefied Gas Form, Odor/Scent: Faint Ethereal, 1.14 Specific Gravity, 3 Vapor Density, -47 deg F Boiling Point, 171.8 psi at 77 deg F Vapor Pressure, Evaporation Rate: >1 %, 100 % Volatile, 52 deg C, Clear