R143a(1,1,1-Trifluoroethane)


R143a packing 926L/cylinder

                    

[Chemical Formula]CH3CF3

[Properties]

 

Molar mass 84.04
Boiling point (1 atm), °C -47.75
Melting point (1 atm), °C -111
Density(25 °C), liquid, g/cm3 1.2
Vapor pressure(21.1 °C), kPa 1.14
Relative density(air=1) 2.9
Critical pressure, MPa 3.78
Critical density, g/cm3 0.455
Vaporization heat below boiling point, KJ/kg 231
Specific heat of equi pressure vapor (Cp) , 30℃, 101.3kPa[KJ/(Kg?℃)] -
Specific heat(30 °C), liquid, KJ/kg °C 1.31
ODP 0
GWP 1.1
Critical temperature, °C 72.9

[Specification]

 

Determination Specification
Appearance Colourless and not turbid
Purity, % ≥99.8
Moisture, mg/kg ≤10.0
Acidity(HCl), mg/kg ≤1.0
Evaporation residue, mg/kg ≤100.0

[Usage] R143a is also known as HFC-143a, Trifluoroethane. can be used single refrigerant. But it is usually mixed with other single refrigerants into mixed refrigerants, replacing R502, R22 and so on. Also R143a is used as a propellant in canned air products and clean electronic equipments.

[packing] Filled in cylinders, the filling ratio of R143a shall be less than 0.79kg/L. R143a cylinder color is same as R134a cylinder.

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