R11(CFC-11, monofluorotrichloromethane) was widely used in the early days and was mainly used in refrigeration equipment such as large central air conditioners (centrifugal chillers). Monofluorotrichloromethane is also widely used in polyurethane (PU) rigid foams as blowing agents, extractants, solvents, and dry cleaning agents. It can also be used as a sequencing agent and an air-soluble insecticide propellant. A pulsed time domain reflection level gauge can also be used for level measurement.
R11 refrigerant is a colorless liquid that is soluble in ethanol and ether, and slightly soluble in water. It is non-combustible and odorless. R11 refrigerant belongs to the CFC class (the first batch of restricted ODS substance Class I Ozone-depleting Substances)-it is harmful to the ozone layer and has a greenhouse effect. Therefore, in developed countries and some developing countries, initial installation on new air conditioners and refrigeration equipment or re-addition on old equipment has been stopped; China stopped production of R11 refrigerant and initial installation on new refrigeration and air-conditioning equipment in 2007.
R11 Refrigerant Parameters
| Names: R11, CFC-11, F-11, Freon 11 | Chinese name: trichlorofluoromethane; trichlorofluoromethane |
| Molecular weight: 137 | Molar mass: 137g/mol |
| Critical temperature: 198℃ | Critical pressure: 4.4MPa |
| Critical density: 0.554 g/cm3 | Boiling point (101.3KPa):23.7℃ |
| CAS Number: 75-69-4 | Liquid density (25℃):1.494g/cm3 |
| Freezing point: -111℃ | Dipole moment:0.45D (Debye) |
| Ozone Destruction Potential (ODP): 1 | Global Warming Coefficient (GWP): 4,600 |
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