R404AR404A is a colorless gas under ordinary temperature, and a colorless & transparent liquid under the pressure of itself,mixed by R125, R134a and R143. It is a long-term substitute for R502, mainly used in the refrigerating systems of low & moderate temperature.Properties:UnitR404AChemical formulaR-134a/R-125/R-32Molecular weightg/molMelting point℃-46.1Critical temperature℃72.4Critical pressureMPa3.69Saturated liquid density (25℃)g/cm31.045ODP0GWP0.35Quality Specification:IndexExcellent GradeAppearanceColorless , not turbidodorNo strange stenchPurity % ≥99.8Moisture % ≤0.001Acidity (as HCl) % ≤0.00001Evaporation residue % ≤0.01Chlorides(Cl-) test % ≤0.0003No condensable gas (V/V) % ≤1.5Packing:10.9kg/30p steel cylinders or ISO TANK.It must be kept in cool, dry and well-ventilated places, away from sunshine and rainfall.