U.S. production stopped December 31, 1995. An azeotropic mixture used in low-and medium-temperature refrigeration applications.
Genetron® 502
General Information
| Item | Specification |
|---|---|
| ASHRAE # | R-502 |
| Typical Lubricant | Mineral Oil |
| Contains | HCFC-22, CFC-115 |
| 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. Consider R-402A, R-402B, R-408A, R-404A, R-507 |
Physical Properties
| Property | Value |
|---|---|
| Chemical Name | Chlorodifluoromethane, Chloropentafluoroethane |
| Chemical Notation | CHClF2, CClF2 CF3 |
| Molecular Weight | 111.6 |
| Boiling Point (°C) | -45.2 |
| Freezing Point (°C) | -17.8 |
| Critical Temperature (°C) | 80.2 |
| Critical Pressure (bar) | 40.17 |
| Liquid Density (kg/m³) 0°C | 1320.34 |
| Specific Heat of Liquid @ Constant Pressure @ 25°C (kJ/(kg.K)) | 1.1967 |
| Specific Heat of Vapor @ Constant Pressure @ 25°C (kJ/(kg.K)) | 0.8991 |
| Vapour Density (kg/m³) 25°C | 4.56 |
| GWP | 4657 |
| ODP | 0.25 |
| ATEL/ODL (kg/m³) | 0.33 |
| Practical Limit (kg/m³) | 0.45 |
| AIT (°C) | ND |
| Flammable range, %vol. in air (Based on ASHRAE Standard 34 with Match Ignition) | None |
| ANSIASHRAE Standard 36-1992 Safety Group Classification | A1 |