1,1,1,2-Tetrafluoroethane
1,1,1,2-Tetrafluoroethane is a colorless gas with a slight ethereal odor.
1,1,1,2-Tetrafluoroethane
Formula: CH₂FCF₃
1,1,1,2-Tetrafluoroethane (CH₂FCF₃), commonly known as R-134a, is a haloalkane refrigerant with thermodynamic properties that make it particularly useful in a variety of applications. This non-flammable gas is primarily used in air conditioning systems for automobiles but is also found in domestic refrigeration and other cooling applications.
R-134a is recognized for its environmental benefits, as it doesn’t deplete the ozone layer, unlike its predecessor R-12. It has a moderate Global Warming Potential (GWP), and while efforts are being made to phase it out in favor of even more eco-friendly alternatives, it remains widely used and accepted in many areas.
Applications
Specifications
Further Specifications
Cylinder Sizes
- It’s primary use is as a substitute for CFC-12 products in refrigeration
- As a substitute for SF6 in magnesium production
- Paired with SF6 for laser machining of silicon
- Highly purified form is used as a propellant in some medical sprays and inhalers
| Grade 2 | |
|---|---|
| Purity | 99.5% |
| Chloride | < 3 ppm |
| High Boiling Residue | < 0.01 ppmv |
| Non-Condensable | <1.5 ppmv |
| Other Refrigerants | < 0.5 ppm |
| Water | < 10 ppm |
| Acidity (HCL) | < 1 ppm |
| Halogenated Unsaturated Volatile Impurities | < 40 ppm |
| Chemical & Physical Properties | |
|---|---|
| Molecular Weight | 102.04 g/mole |
| Specific Volume | 3.7078 cu. ft./lb |
| Pressure @ 70°F | 81.3 psig |
| Valve Outlet | CGA 660; 1/4 flare (30 lbs) |
| Shipping Information | |
|---|---|
| DOT Name | 1,1,1,2-Tetrafluoroethane or Refrigerant Gas r134A |
| Hazard Class | 2.2 |
| DOT No. | UN 3159 |
| DOT Label | Green, Non-Flammable Gas |
| CAS No. | 811-97-2 |
| Cylinder Size | Fill Volume (lb) |
|---|---|
| 1/2 Ton | 1,000 |
| 125 lb | 125 |
| 30 lb (disposable) | 30 |
