R-407C
Mixture used as a refrigerant
R-407C is a mixture of hydrofluorocarbons used as a refrigerant. It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a). Difluoromethane serves to provide the heat capacity, pentafluoroethane decreases flammability, tetrafluoroethane reduces pressure.[1] R-407C cylinders are colored burnt orange.
This refrigerant is intended as a replacement for R-22. R-22 production will be phased out by 2020 as per the Montreal Protocol.[2]
Physical properties
Property | Value | ||||||
---|---|---|---|---|---|---|---|
Formula |
| ||||||
Molecular Weight (kg/kmol) | 86.2 | ||||||
Boiling point (°C) | −43.8 | ||||||
Saturated liquid density (25°C), kg/m3 | 1138 | ||||||
Saturated vapour density (25°C), kg/m3 | 43.8 | ||||||
Critical temperature (°C) | 86.4 | ||||||
Critical pressure, bar | 46.3 | ||||||
Liquid heat capacity @ 25°C, (kJ/(kg·K)) | 1.533 | ||||||
Vapour heat capacity @ 1.013 bar (kJ/(kg·K)) | 1.107 |
References
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Halomethanes
- CH4
- CH3F
- CH3Cl
- CH3Br
- CH3I
- CH3At
- CH2F2
- CH2ClF
- CH2BrF
- CH2FI
- CH2Cl2
- CH2BrCl
- CH2ClI
- CH2Br2
- CH2BrI
- CH2I2
- CHF3
- CHClF2
- CHBrF2
- CHF2I
- CHCl2F
- C*HBrClF
- C*HClFI
- CHBr2F
- C*HBrFI
- CHFI2
- CHCl3
- CHBrCl2
- CHCl2I
- CHBr2Cl
- C*HBrClI
- CHClI2
- CHBr3
- CHBr2I
- CHBrI2
- CHI3
- CF4
- CClF3
- CBrF3
- CF3I
- CCl2F2
- CBrClF2
- CClF2I
- CBr2F2
- CBrF2I
- CF2I2
- CCl3F
- CBrCl2F
- CCl2FI
- CBr2ClF
- C*BrClFI
- CClFI2
- CBr3F
- CBr2FI
- CBrFI2
- CFI3
- CCl4
- CBrCl3
- CCl3I
- CBr2Cl2
- CBrCl2I
- CCl2I2
- CBr3Cl
- CBr2ClI
- CBrClI2
- CClI3
- CBr4
- CBr3I
- CBr2I2
- CBrI3
- CI4
* Chiral compound.
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