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Product Name
Difluoromethane (R32)
Physical Properties
Formula CH2F2
Molecular Weight 52.02
Boiling point / ℃ -51.7
Critical temperature / ℃ 78
Critical pressure / Mpa 5.78
Liquid Density (25 ℃) / (kg / m3) 961
Heat of vaporization / latent heat of vaporization (boiling point, 1atm), kJ / kg 390
Combustion limit (air) /% (by volume) 14~31
Ozone Depleting Potential (ODP) 0
Global Warming (GWP100) 650
Quality Index
Appearance Colorless and transparent, not cloudy
Odor Odorless
Purity% ≥99.8
Ppm moisture content ≤10
Evaporation residue ppm ≤100
Non-condensable gas (V / V)% ≤1.5
Acidity (as HCL) ppm ≤ 1
Filling factor
Non-refillable welded cylinders: 10kg
Refillable welded cylinders: 10kg, 80kg, 640kg, 800kg; mobile tank (ISO TANK)
Packaging logo
Flammable gases
UN Number
R32 is mainly used for the preparation of mixed refrigerant R410A, R407C, etc; currently in a small air-conditioning equipment (mainly home air conditioning) in substitution R410A.
Storage and transportation
R32 refrigerant cylinders for pressurized containers should be stored away from fire, heat, avoid direct sunlight, usually put storage in a cool, dry and ventilated warehouse; handling with care, light disposal to prevent damage to the cylinder and valves and other accessories .



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