R290, also known as propane, is a hydrocarbon refrigerant gas used in small refrigeration systems such as domestic refrigerators and freezers.
R290, also known as propane, is a hydrocarbon refrigerant gas that is commonly used in small refrigeration systems, such as domestic refrigerators and freezers. It is a colorless, odorless gas that is non-toxic and has a low Global Warming Potential (GWP), making it an environmentally friendly alternative to some other refrigerants. Propane has a high cooling capacity and energy efficiency, which has made it a popular choice for domestic refrigeration systems. However, like R600a, it is highly flammable, which can be a safety concern if not handled properly. Despite this, R290 is widely adopted in some countries and regions as a replacement for older refrigerants with higher GWP.
- R-600a (isobutane), R-1270 (propylene), R-441A
- 44.1 g/mol
- 7.9 MPa (25°C)
- 1.53 (air = 1.0)
- 0.58 g/cm³ (liquid at 25°C)
- 0.05 g/L (25°C)
- 5.24 (n-butyl acetate = 1.0)
- Highly flammable
- 2.1 – 10.1% (in air)
- -104°C (closed cup)
Global Warming Potential (GWP)
Ozone Depletion Potential (ODP)
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