R404 Refrigerant is mainly used to substitute CFC-12 as refrigerant in car conditioning and refrigerating and refrigerating in refrigerator 
Boiling Point º C: -27 
Critical temperature º C: 115 
Critical Pressure Mpa: 4.7 
Saturation steam pressure (mpa), 25 º C  0.7 
Relative density( water=1)  1.12 
Relative vapor density ( air=1)  2.79 
Appearance : Colorless, no cloudy 
Odor   Odorless 
Purity ≥% 99.5 
Water, ppm ≤ 10 
Acidity, ppm ≤ 1 
Residue mg/kg ≤ 100 
Non-congealing gas-phase, % (v/v), ≤ 1.5