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It is a colorless gas under ordinary temperatures and colorless & transparent liquid the pressure of itself,used as refrigerants,the vital part of mixed working substantces to substitute CFC-502 & HCFC-22,and as flame-retardants to substitute Halon-1211 & Halon-1301
Physical Characteristics
Index | Unit | HFC-125 |
Chemical formula | CHF2CF3 | |
Molecular weight | g/mol | 120.02 |
Melting point | °c | -102.02 |
Boiling point | °c | -48.45 |
Specific gravity(25°c liquid) | g/cm³ | 1.245 |
Vapor pressure(25°c) | MPa | 1.371 |
Ctrtical temperature | °c | 66.05 |
Critical pressure | MPa | 3.592 |
Critical density | g/cm³ | 0.571 |
Vaporization heat at boiling point | KJ/kg | 165 |
Water solubility(25°c) | w% | 0.09 |
Specific heat(25°c liquid) | KJ/kg.k | 1.26 |
ODP | 0 | |
GWP | 2800 |
Specification
Appearance | Colorless,no turbid |
Odor | Odorless |
Purity%≥ | 99.8 |
Acidity(as HCl)%≤ | 0.0001 |
Evaporation residue%≤ | 0.01 |
Chlorides(cl¯) test%≤ | 0.0003 |
No condensable gas cubic fraction%≤ | 1.5 |
HFC-125