Refrigerant
The working fluid used in refrigerators.
| Designation | Chemical | Comments |
| R-22 | chlorodifluoromethane | |
| R-115 | chloropentafluoroethane | |
| R-117 | Ammoniavery efficient refrigerant. | |
| R-134a | 1,1,1,2-tetrafluoroethane | |
| R-170 | Ethanesometimes added to other refrigerants to improve oil circulation. | |
| R-502 | 48.8% R-22 and 51.2% R-115 | |
| R-744 | Carbon Dioxide |
See also: Refrigerator.
Subjects: Civil Engineering Mechanical Engineering