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HFC-134a (Tetrafluoroethane)
Identification
Synonyms: 1,1,1,2-Tetrafluoroethane; FC-134a; Fluorocarbon 134a; HFC-134a; Norflurane; R-134a
CAS No.: 811-97-2 EC No.: 212-377-0
Molecular Weight: 102.0314
Molecular Formula: C2H2F4
Structural Formula: 
m.p.: -103.3°C
b.p. (1 atm): -26.2°C
ODP: 0
GWP: 1300 (CO2=1)
Chemical and Physical properties: Stable in normal condition, HFC-134a is odorless, colorless, non-corrosive
Preparation
HFC-134a (tetrafluoroethane) is made by process of two-step gas-phase fluoridation between trichloroethylene (PCE) and hydrofluoric acid (HF). The intermediate of reaction is HCFC-133a
Application
HFC-134a is applied primarily as a “high-temperature” refrigerant for home and automobile air conditioners, also as blowing agent for rigid foam insulation materials, as a cleaning solvent, as a propellant for the delivery of pharmaceuticals, and as gas dusters
Specification*
| Parameters | Specification |
|---|---|
| HFC-134a purity | 99.9% min. |
| moisture | 10ppm max. |
| acidity | 1ppm max. |
| evaporation residues | 0.01% max. |
| non-condensable gas | 1.0% max. |
| chloride content | comply to standard |
Standard Packaging
13.6kg/disposable cylinder, 1000kg cylinder, ISO tank
Risks and Safety Information
Non-flammable gas; Class 2.2; UN3159
HFC-134a may decompose under temperature of 250 °C and emits toxic gases including hydrogen fluoride and carbonyl halides. Compressed HFC-134a will greatly lower temperature of any object it contacts. This can cause frostbite when it contacts skin.
For more information, please see MSDS.