Forane® 134a (R-134a) is a non-ozone depleting HFC with properties very similar to R-12.
It can be used both as a pure refrigerant and as a component in refrigerant blends.
R-134a is used in applications, including
- automotive air conditioning, chillers
- medium temperature commercial refrigeration
- refrigeration appliances
- dehumidifier
- transport refrigeration.
A zero ODP HFC used alone (as an R-12 replacement) or as a component in blends (especially those designed to replace R-22 and R-502). Some current applications include automotive A/C, positive pressure centrifugal chillers, medium to high temperature commercial refrigeration, refrigeration appliances, and transport refrigeration.
| Maximum
(unless otherwise noted) |
|
| 1,1,1,2-Tetrafluoroethane, wt % | 99.8 (minimun) |
| Air and Other Non-condensable Gases, vol % | 1.5 |
| Volatile Impurities, wt. % | 0.5 |
| High Boiling Residue, vol % | 0.01 |
| Moisture (H2O), ppm by wt | 10 |
| Acidity, ppm by wt (as HCl) | 1.0 |
| Chloride, no visible turbidity (indicates about 3 ppm) | Pass |
| Particulates / solids (visually clean to pass) | Pass |
| Appearance | Colorless liquefied gas |
| Odor | Faint, ether-like odor |
| Molecular Mass (g/mole) | 102.03 |
| Boiling Point at 1 atm | -15.0°F / -26.1°C |
| Flammable Limits (LFL, UFL), vol % (1 atm, 25°C) | NA / NA |
| ANSI/ASHRAE Standard 34 Safety Group
Classification |
A1 |
| Ozone Depletion Potential (ODP) (CFC-11 = 1.0) | 0 |
| Global Warming Potential (GWP1) (CO2 = 1.0) | 1,300 |
(1) GWP according to IPCC AR5. Values for 100-year time horizon
| 50°F | 70°F | 105°F | 115°F | 130°F | |
| Vapor Pressure, psia(2) | 60.1 | 85.8 | 149.6 | 173.3 | 213.4 |
| Liquid Density, lb./ft3(2) | 78.7 | 76.2 | 71.4 | 69.9 | 67.5 |
(2) Generated using NIST REFPROP Version 9.1