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1,1-dichloro-1-fluoroethane (HCFC-141b)
molecular formula: CH3CCl2F UN Number: 1078 risk grades: 2.2
Physical property:
| molecular weight | 116.95 | critical pressure, MPa | 4.34 |
| boiling point (1 atm), °C | 32.05 | critical density, g/cm3 | 0.433 |
| freezing point (1 atm), °C | -103.5 | latent heat of evaporation under boiling point, KJ/kg | 223.0 |
| density(25 °C), liquid, g/cm3 | 1.227 | steam thermal conductivity(1 atm, 25 °C), mw/mk | 8.3 |
| steam density(air=1) | 4.1 | water solubility(25 °C), w% | 0.509 |
| vapour pressure(25 °C), MPa | 0.079 | specific heat(25 °C), liquid, KJ/kg °C | 1.16 |
| volume volatilization rate(20 °C),% | 100.0 | ODP | 0.01 |
| critical temperature, °C | 204.5 | GWP | 630 |
Quality index:
| item | index |
| appearance | colorless transparent liquid |
| purity, % | ≥99.5 |
| moisture, % | ≤0.005 |
| acidity(in HCL), % | ≤0.0001 |
| residue on evaporation, % | ≤0.01 |
| vinylidene chloride+acetylene dichloride, % | ≤0.02 |
Uses: It can be used as foaming agent of rigid polyurethane foam to replace CFC-11 and as cleaning agent by replacing of CFC-113.
Packing specification: 250kg/200L steel drum, 25 tons transport tank
