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CAS : 75-43-4
formula : CHCl2F
molecular weight : 102.92
boiling point : 8.9 ° C
Chinese name : a halons; Freon 21
English name : algofrene type 5; Arcton 7; cfc-21; dichlorofluoromethane; dichloromonofluoromethane; dwuchlorofluorometan; dwuchlorofluorometan (polish); fc 21; fc - 21
traits Description : colorless and transparent liquid. Solidification point -135 ° C, the boiling point 8.92 (9 ° C) and relative density of 1.405 (9 / 4 ° C), the refractive index 1.3724 (9 ° C), dissolved in ether; Ethanol; Chloroform. A similar smell carbon tetrachloride, non-corrosive, chemically stable. Not burning, but the flames decomposition of HCI; HF, but also the way gas.
production methods : from methane and chlorine; Anhydrous hydrogen fluoride in the fluidized bed reactor for direct synthesis : reaction, the separation of hydrogen chloride; Dry purification, and separation by distillation cutting other CFCs A n-derived products. Another production is by chloroform and HF in the presence of fluoride agent derived role.
purposes : for refrigerant.
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