refrigerant gas Features: 1) Boiling point: -11.8 2) Vapor Pressure: 0.3498Mpa@25oC 3) Form: liquefied gas 4) Color: clear, colorless 5) Purity: min. 99.9% 6) Acidity (as HCL): max. 1.0ppm 7) Density:0.551g/ml@25oC 8) Advantages: high efficiency, safe, energy saving, environmentally friendly, Economical