Genetron® 500

U.S. production stopped December 31, 1995. Genetron 500, an azeotropic mixture, has slightly higher vapor pressures and provides higher capacities from the same compressor displacement. A mixture of R-12 and R-152a, R-500 was mostly used in dehumidifiers.

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General Information

Item Specification
ASHRAE # R-500
Class CFC
Refrigerant Type  Azeotrope
Typical Lubricant Mineral Oil
Notes U.S. production stopped December 31, 1995. Chlorofluorocarbon (CFC) products such as R-500 are no longer manufactured but are still used in a variety of systems, and service refrigerant is sometimes still available in reclaimed form in some developed countries including the United States. In countries operating under “Article 5″ provisions of the Montreal protocol agreement, CFCs in virgin form are still available, although these countries are now beginning to implement CFC phase-outs.

Physical Properties

Property Value
Chemical Name Genetron® 500
Molecular Weight 99.3
Boiling Point (°C) -11.9
Freezing Point (°C) -17.8
Critical Temperature (°C) 102.09
Critical Pressure (bar) 41.68
Liquid Density (kg/m³) 0°C 1222.76
Specific Heat of Liquid @ Constant Pressure @ 25°C (kJ/(kg.K)) 1.2163
Specific Heat of Vapor @ Constant Pressure @ 25°C (kJ/(kg.K)) 0.8767
Vapour Density (kg/m³) 25°C 4.06
GWP 8077
ODP 0.738
ATEL/ODL (kg/m³) 0.12
Practical Limit (kg/m³) 0.4
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