General Characteristics Trifluoromethane is a colourless, nonflamable and liquefied gas. It is shipped as a liquefied gas under its own vapour pressure.   Physical Properties Molecular Weight 70.01 Flammability Limits in air Nonflammable Specific Gravity, Gas @ 70°F(21.1°C), 1 atm(Air=1) 2.430 Density, Gas @ 70°F(21.1°C), 1 atm 0.182lbs/ft^3 (2.91g/l) Specific Volume, Gas @ 70°F(21.1°C), 1 atm 5.5ft^3/lb (0.344ml/g) Boiling Point @ 1 atm -115.6°F (-82.0°C) Melting Point @ 1 atm -247.4°F (-155.2°C) Critical Temperature 78.3°F (25.7°C) Critical Pressure 697 psia (48.1 bar) Toxicity Causes dizziness in high concentrations

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