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|Systematic IUPAC name
Carbon fluoride hydride
3D model (JSmol)
|Molar mass||52.02 g·mol−1|
|Density||1.1 g cm−3|
|Melting point||−136 °C (−213 °F; 137 K)|
|Boiling point||−52 °C (−62 °F; 221 K)|
|Vapor pressure||1518.92 kPa (at 21.1 °C)|
|Safety data sheet||See: data page
MSDS at Oxford University
|S-phrases (outdated)||S9, S16, S33|
|648 °C (1,198 °F; 921 K)|
|Supplementary data page|
|Refractive index (n),
Dielectric constant (εr), etc.
|UV, IR, NMR, MS|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Difluoromethane is a refrigerant that has zero ozone depletion potential. Difluoromethane in a zeotropic (50%/50%) m/m mixture with pentafluoroethane (R-125) is known as R-410A, a common replacement for various chlorofluorocarbons (aka Freon) in new refrigerant systems, especially for air-conditioning. The zeotropic mix of difluoromethane with pentafluoroethane (R-125) and tetrafluoroethane (R-134a) is known as R-407A through R-407E depending on the composition. Likewise the azeotropic (48.2%/51.8% m/m) mixture with chlorotrifluoromethane (R13). As a refrigerant difluoromethane is classified as A2L - slightly flammable. Although it has zero ozone depletion potential, it has global warming potential 675 times that of carbon dioxide, based on a 100-year time frame.
- "Difluoromethane - Compound Summary". The PubChem Project. USA: National Center of Biotechnological Information.
- 2009 ASHRAE Handbook
- May 2010 TEAP XXI/9 Task Force Report