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Application:
R22 a colorless gas under ordinary temperatures and a colorless & transparent liquid under the pressure of itself, non-toxic & inflammable with the excellent thermo-stability and chemical stability, unable to erode metals and it is a refrigerant for low temperature up to -80°C below, the important raw material for tetrafluoroethylene and the intermediate for the refrigerant 1211.
Physical Characteristics: (HCFC-22)
Chemical formula | CHCIF2 |
Molecular weight ( g/mol) | 86.5 |
Melting point (°C) | -146 |
Boiling point (°C) | -40.8 |
Specific gravity (25°C liquid) g/cm3 | 1.173 |
Vapor pressure (25°C) MPa | 1.04 |
Critical temperature (°C) | 96 |
Critical pressure (MPa) | 4.98 |
Critical density ( g/cm3) | 1.221 |
Vaporization heat at boiling point ( KJ/Kg) | 233.5 |
Water Solubility (25°C) W% | 0.30 |
Specific heat (25°C liquid) KJ/kg.k | 1.257 |
ODP | 0.055 |
GWP | 0.17 |
Quality standard:
Index | Best quality | First-class | Up to standard |
Appearance | Colorless, no turbid | ||
Odor | No strange stench | ||
Purity %≥ | 99.8 | 99.5 | 99.0 |
Moisture %≤ | 0.001 | 0.002 | 0.005 |
Acidity (as HCI) %≤ | 0.00001 | 0.0001 | 0.0001 |
Evaporation residue %≤ | 0.01 | 0.01 | 0.02 |
Chlorides(cl ¯ ) test %≤ | 0.0003 | ||
No condensable gas cubic fraction %≤ | 1.5 | ||
Neutral Packing Refrigerant R22