| | |
Partially halogenated fluorocarbons (HFCs) have no ozone depletion potential (ODP = 0) and lower direct global warming potential (GWP = 122-14,310) than PFCs, as well as a shorter life cycle (1.4-270 years). The European F-Gas Directive and the Kyoto Protocol seek to radically reduce the use of HFCs.
Examples: R 23, R 125, R 134 a, R 152 a, R 404 A, R 407 C, R 410 A, R 507 A |
|
Characteristics
(R 404 A)| ODP | 0 | | GWP | 3,260 | | Molecular
weight | 97.61
g/mol | | Boiling
point (1.013 bar) | -46.7
ºC | | Critical
temperature | 73.0
ºC | | Critical
pressure | 37.3
bar | | Critical
density | 485.0
kg/m³ | | Vapor
pressure at 25 ºC | 12.80
bar |
|
| |
