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| refrigerant R134a,HFC-134a now is internationally recognized as one of the main refrigerant working substances to substitute CFC-12. It does not contain the chlorine atom, give no bad effects against ozonosphere and have excellent safety performances... |
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| Refrigerant R502
Property of chloride: Molecular weight
BP, -45.3
Ice point -
Critical temperature, 80.7
Critical pressure, Mpa 4.02
Density of saturated liquid30, (g/cm3)
Specific heat of liquid 30, [KJ/(Kg)] 0.21
Specific heat of equipres... |
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| Characteristics&purposes: R404a is a colorless gas under ordinary temperatures, and a colorless&transparent liquid under the pressure of itself, mix by HFC-125, HFC-134a and HFC-143. And it's a long-term substitute for R502, mainly used in refrigerat... |
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