R134arefrigerantR134a Refrigerant
Pure HFC refrigerant for automotive AC, medium-temperature commercial refrigeration and many chiller applications.
About this refrigerant
R134a (1,1,1,2-tetrafluoroethane, CH₂FCF₃) is a pure hydrofluorocarbon refrigerant. It contains no chlorine, so its ozone depletion potential (ODP) is zero. It became the main long-term replacement for CFC-12 in automotive air conditioning and is still widely used in medium-temperature commercial refrigeration, domestic appliances and positive-pressure centrifugal chillers.
It is colourless, nearly odourless and classified ASHRAE A1 (lower toxicity, no flame propagation under standard test conditions). Typical systems use polyolester (POE) lubricants. R134a has a relatively high global warming potential (GWP 1430, IPCC AR4), so recovery and correct charging practice matter — and many new automotive platforms are moving to lower-GWP options such as R1234yf.
Applications
Automotive air conditioning
Long-standing mobile AC refrigerant for passenger and light commercial vehicles designed for R134a circuits.
Commercial & retail refrigeration
Medium-temperature cabinets, cold rooms and food-service equipment where stable A1 performance is required.
Chillers & heat pumps
Positive-pressure centrifugal and other chillers, plus selected heat-pump designs specified for R134a.
Appliances & transport cooling
Domestic refrigerators/freezers and transport refrigeration units engineered around R134a properties.
Technical properties
- Chemical name
- 1,1,1,2-Tetrafluoroethane
- Formula
- CH₂FCF₃
- CAS / ID
- 811-97-2
- Type
- Pure HFC
- Composition
- 100% R134a
- Molecular weight
- 102.03 g/mol
- Boiling point (1 atm)
- −26.1 °C
- Critical temperature
- 101.1 °C
- ASHRAE safety class
- A1
- ODP
- 0
- GWP (AR4, 100 yr)
- 1430
- Typical lubricant
- POE (polyolester)
GWP values are IPCC AR4, 100-year. Typical published figures; confirm with product documentation for critical designs.
Service only with recovery equipment and certified technicians. Do not vent to atmosphere. Confirm cylinder size and stock availability with ACC before ordering.
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