R141b (1,1-dichloro-1-fluoroethane)


                R141b blue drum    HCFC-141b container loading

[Chemical Formula] CH3CCl2F

[Properties]

 

Molar mass 116.95 Critical pressure, MPa 4.25
Boiling point (1 atm), °C 32.05 Critical density, g/cm3 0.433
Freezing point (1 atm), °C -103.5 Vaporization heat below boiling point, KJ/kg 223.0
Density(25 °C), liquid, g/cm3 1.227 Conductivity of Heat, Vapor(1 atm, 25 °C), mw/mk 8.3
Relative density(air=1) 4.1 Solubility(in water)(25 °C), w% 0.509
Vapor pressure(25 °C), MPa 0.079 Specific heat(25 °C), liquid, KJ/kg °C 1.16
Percent Volatiles by Volume(20 °C),% 100.0 ODP 0.11
Critical temperature, °C 204.5 GWP 0.09

[Specification]

 

Determination Specification
Appearance Colourless and not turbid
Purity, % ≥99.5
Moisture mg/kg ≤50.0
Acidity(HCl), mg/kg ≤1.0
Evaporation residue mg/kg ≤100.0
Vinylidene chloride+Dichloroacetylene, mg/kg ≤200.0

[Usage]R141b also called HCFC-141b, blowing agent 141b, foam agent 141b, 1,1-dichloro-1-fluoroethane, Dichlorofluoroethane. It is a foaming agent as alternative to CFC 11. And R141b is a precision cleaning agent to substitute CFC-113. Most R141b factories are in China. But now less and less R141b quota for all users and manufacturers. And HCFC-141b will be replaced by R245fa, HFC365mfc, cyclopentane, n-pentane and their blends.

[packing]R141b main packings are 250kg/drum, 25mt/ISO tank.

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