菜单
Molecular formula: CH2F2 Difluoromethane(1,1-Difluoromethane) UN NO: 3252 Danger Class: 2.1
Uses: Used as refrigerant, important component for the substitute of R22.
Molecular formula: CH2F2 Difluoromethane(1,1-Difluoromethane) UN NO: 3252 Danger Class: 2.1
Physical property:
| molecular weight | 52.02 | boiling point(1amt)℃ | -52 |
| melting point,℃ | -137 | boiling point evaporation potential,KJ/Kg | 390.5 |
| density(25℃) liquid, g/cm3 | 0.960 | vapour pressure(25℃),Mpa | 1.70 |
| critical temperature,℃ | 78.52 | critical pressure,Mpa | 5.808 |
| critical density ,g/cm³ | 0.430 | specific heat(25℃)liquid,KJ/Kg℃ | 2.35 |
| water solubility℃,W% | 0.440 | GWP100 | 677 |
| ODP | 0 |
Quality index(HG/T 4634-2014):
| appearance | Colorless, Clear |
| purity,% | ≥99.8 |
| moisture,% | ≤0.001 |
| acidity,% | ≤0.0001 |
| evaporated residue,% | ≤ 0.01 |
| High Boiling Residue, ppm by volume | ≤50 |
| Chloride,% | Pass |
| Foul Gas in Air Phase,% | ≤1.5 |
Packing specification: Disposable cylinder 6.6lb/3kg; Recyclable steel cylinder, 40L/30kg, 926L/670kg; ISO tank.
Uses: Used as refrigerant, important component for the substitute of R22.
