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R***4a Chemical Name 1, 1, 1, *-tetrafluoroethane (HFC) Chemical Formula CH2FCF3 R**4A (tetrafluoroethane) is mainly used to substitute CFC**2 as refrigerant in automotive air conditioning, refrigerating in refrigerator. Specification: Boiling Point **7 Critical temperature **5 Critical Pressure Mpa 4.7 Saturation steam pressure (mpa), *5 0.7 Relative density( water=1) 1.*2 Relative vapor density ( air=1) 2.*9 Appearance Colorless, Colorless, no cloudy Odor Odorless Purity *9.8 % Water, ppm *0 Acidity, ppm 1 Residue mg/kg **0 Non-congealing gas-phase, % (v/v), 1.5
