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A single component HCFC refrigerant, R-22 has been historically used for air conditioning, specifically in medium to low-temperature applications. Discovered in the 1970’s it becomes the most used refrigerant in the world. Talking of air conditioners installed before 2010, they are likely to have R22 as a refrigerant.

Due to low boiling point it can only be used for either low or medium temperature application such as domestic, farm freezers and in small industries. Systems using this refrigerant should contain minimum CR (Compression Ratio).

Although R22 with an insight to the whole market couldn’t possibly be fade out quickly but still after Montreal Protocol, an international treaty had been signed, in which EPA (Environmental Protection Agency) declared R22 as Ozone layer depleting refrigerant and since then its production as well imports begin to ride at the edge of extinction.

Things keeping it intact are:

  • It needs low compressor displacement. In the case of R12, only 60% of displacement it needs which automatically makes its refrigeration capacity 65% more than R12.
  • It’s ODP (Ozone Layer Depletion) is just 5% when comparing to R11.
  • It is highly efficient with low power consumption


Non-Flammable & safe to use.

Molecular weight is 86.5 g/mol

  • Boiling point at 1 ATM is -40.8 °C
  • Melting point is -146°C
  • Critical Temperature is 96.2 °C
  • ODP (Ozone Depletion Layer) – 0.055
  • GWP (Global Warming Potential) – 1810
  • Cylinder color code – Light green
  • Color – Clear, colorless
  • Odor – Slight ethereal

There are alternatives these days occupying the space of R22 with an uplift in safety, efficiency and most importantly environment-friendly. These alternatives arise are R410a, R134a, R507 and R407c.

Material Safety Data Sheet For R-22 Is Available To Download Below , Click On The Button Below To View Or Download The Data Sheet