الوصف

Refrigerant R***4a is a kind of refrigerant of surrounds-protection model, used in replacing R*2 R**2. It has a good nature of cleaning, low poison, non-combustion, good-refrigeration and so on, and greatly used in air- conditioners. Formula CHF2 CF3/CH3CF3/CF3CH2F Boiling Point ( ℃ ) **6.1 Vapor pressure(*5℃), Mpa, abs 1.*6 Liquid density(*5℃), kg/L 1.**5 ODP 0 Odor Slight ether Critical Pressure Mpa 4.**9 Color Colorless, transparent Nature Liquefied gas, stable HFC***5, %(W/W) *4?2 HFC***3a %(W/W) *2?2 HFC***4a, %(W/W) 4?1 Purity % *9.5 Water, ppm ≤ *0 Acidity, ppm ≤ 1 Residue mg/kg ≤ **0 Non-congealing gas-phase, % (v/v), ≤ 1.5