Characteristics & Purposes
It is a colorless gas under ordinary temperatures and a colorless & transparent liquid under the pressure of itself, used is refrigerants and the vital part to substitute HCFC-22.
Physical Characteristics
Index Unit HFC-32
Chemical formula CH2F2
Molecular weight g/mol 52.02
Melting point °C -136
Boiling point °C -51.7
Specific gravity (25°C liquid) g/cm3 0.958
Vapor pressure (25°C) MPa 1.689
Critical temperature °C 78.10
Critical pressure MPa 5.808
Critical density g/cm3 0.424
Water solubility (25°C) w% 0.44
ODP 0
GWP 650
Specification
Index Best quality First-class
Appearance Colorless no turbid
Odor No strange stench
Purity % ≥ 99.8 99.5
Moisture % ≤ 0.001 0.002
Acidity (as HCl) % ≤ 0.00001 0.0001
Evaporation residue % ≤ 0.01 0.01
Chlorides (Cl-)test % ≤ 0.0003 0.0003
No condensable gas cubic fraction % ≤ 1.5 1.5
Packing: 670kg/800L, 780kg/926L steel cylinders, or ISO TANK.