R125 (Pentafluoroethane)

R125 cylinderHFC-125 ton tank


[Chemical Formula]CHF2CF3



Molar mass 120.02
Boiling point (1 atm), °C -48.45
Melting point(1 atm), °C -103
Density(25 °C), liquid, g/cm3 1.19
Saturated liquid density 30℃ , (g/cm?3?) 1.245
Critical pressure, MPa 3.36
Critical density, g/cm3 ?0.571 ?
Vaporization heat below boiling point, KJ/kg 161
比热(30 °C), 液体, KJ/kg °C 1.26
GWP 2800
Critical temperature, °C 66.2



Determination Specification
Appearance Colourless and not turbid
Purity, % ≥99.8
Moisture mg/kg ≤10.0
Acidity(HCl), mg/kg ≤1.0
Evaporation residue mg/kg ≤100.0

[Usage]R125 is also known as HFC-125, Pentafluoroethane, FC-125, Freon 125. It is usually used to mix refrigerant R410A, R507, R404A and so on, to replace R22 and R502. It is also used as extinguisher to replace halon-1301. HFC-125 is a non-ozone depleting replacement for Halon 1301. In addition, HFC-125 leaves no residue on valuable equipment after discharge. HFC-125 is considered a Clean Agent and is therefore included in the National Fire Protection Association's 2001 - Standard for Clean Agent Fire Extinguishing Systems.

[packing] R125 filling ratio shall be less than 0.95kg/L, usually filled in cylinders.