Fact Sheet: HCFCs
Partially halogenated chlorofluorocarbons (HCFCs) are used as refrigerants, propellants or solvents. HCFCs are manmade substances that are chemically stable, non-flammable, odourless and tasteless. They are hydrocarbons whose hydrogen atoms have been partially replaced with the halogens fluorine and chlorine. Compared to CFCs (e.g. R 12 ODP = 1), they are less stable and have both a lower ozone depletion potential (ODP = 0,02-0,06) and a lower direct global warming potential (GWP = 76-12,100). In Europe, HCFCs are not permissible as refrigerants in new plants.
Examples: R 22, R 123, R 124, R 141b, R 142b
Characteristics:
ODP | 0.055 |
GWP | 12,100 |
Molecular weight | 86.47 g/mol |
Boiling point (1.013 bar) | -40.8 °C |
Critical temperature | 96.15 °C |
Critical pressure | 49.88 bar |
Critical density | 513 kg/m³ |
Vapor pressure at 25 ºC | 10.44 bar |