... .purity:99.8%, 3.first service. Product:Refrigerant gas R22 Physical Properties Molecular Weight85.47Normal boiling Point, °C-40. ... . It can also be used as a pesticide. Spraying agent for lacquering and in the processing of fire-extinguishing agent(1211 ... cylinder 400L, 800L, 926L, 1000L; ISO-Tank. refrigerant R22 (pure gas)