Difluorochloromethane (R22)
1. Molecular Formula: CHCLF2
Commodity Code: 29034910 Danger Code: 1018 Danger Class: 2.2
2. Physical Properties:
Molecular Weight | 86.48 |
Boiling Point, ° C | -40.82 |
Relative Density(30° C), liquid, g/cm3 | 1.177 |
Melting Point, ° C | -160.00 |
Critical Temperature, ° C | 96.15 |
Critical Pressure, MPA | 4.75 |
Ozonosphere Damage Potency(ODP) | 0.045 |
Global Warming Potency(GWP) | 1700 |
Freezing point 30° C |
- |
Specific heat of liquid 30° C , [KJ/(Kg· ° C)] | 0.31 |
Density of saturated liquid 30° C , (g/cm3 ) | 1.174 |
Specific heat of e quipressure vapor(Cp) , 30° Cand 101.3kPa[KJ/(Kg· ° C)] | 0.16 |
Critical density , g/cm3 | 0.526 |
Vaporization heat below boiling point , KJ/Kg | 233.5 |
3. Quality Index (GB7373-87)
Grade | Excellent Grade | First Grade | Qualified |
Purity, %≥ | 99.8 | 99.5 | 99.0 |
Moisture, % ≤ | 0.001 | 0.002 | 0.005 |
Acidity(as HCl), %≤ | 0.00001 | 0.0001 | 0.0001 |
evaporation residue, %≤ | 0.01 | 0.01 | 0.02 |