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.
Genetron® 500
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 |
| AIT (°C) | ND |