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1,1,1,2-Tetrafluoroethane[edit | edit source]

Introduction[edit | edit source]

1,1,1,2-Tetrafluoroethane, commonly known by several names including R-134a, Freon 134a, and HFC-134a, is a hydrofluorocarbon (HFC) used primarily as a refrigerant. It is known for having thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with significantly lower environmental impact.

Chemical Properties[edit | edit source]

Chemical structure of 1,1,1,2-Tetrafluoroethane.

The chemical formula for 1,1,1,2-Tetrafluoroethane is CF3CH2F. It has a boiling point of −26.3 °C (−15.34 °F) at atmospheric pressure.

Environmental Impact[edit | edit source]

R-134a is notable for its negligible ozone depletion potential and a lower 100-year global warming potential (GWP) of 1,430, compared to R-12's GWP of 10,900.

Uses[edit | edit source]

This compound is used in various applications such as:

  • Automotive air conditioning systems
  • Refrigeration systems
  • Aerosol propellants
  • Foam-blowing agents

Health and Safety[edit | edit source]

Exposure to R-134a can have health implications, including skin and eye irritation and, in high concentrations, asphyxiation.

Regulation and Phaseout[edit | edit source]

Due to environmental concerns, there has been a move to phase out R-134a since 2012, particularly in the automotive market. Alternatives like HFO-1234yf, with GWPs similar to CO2, are being adopted.

Container Identification[edit | edit source]

R-134a cylinders are identified by their light blue color.

Transition to Alternatives[edit | edit source]

The transition to more environmentally friendly alternatives, such as HFO-1234yf, is ongoing in response to environmental regulations and concerns over global warming.

See Also[edit | edit source]

References[edit | edit source]

External Links[edit | edit source]

1,1,1,2-Tetrafluoroethane Resources

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