Hexachloroethane CAS 67-72-1

It is acquired by chlorination of tetrachloroethane. The dried tetrachloroethane is put into the glass-lined separation reaction pot, and also chlorine gas is presented under solid light irradiation, as well as the reaction temperature level is slowly raised, and finally maintained 90-100 ° C. When the reaction remedy turns from muddy to clear and crystals show up in the chlorination tube, the chlorination will get to the end factor. Stop the chlorine circulation, raise the temperature to 120 ° C, as well as discharge the recurring chlorine in the pot to reach completion point. Quit the chlorine flow, raise the heat to 120 ℃, and also discharge the recurring chlorine in the pot. Release right into a formation pot loaded with boiling water, wash with warm water, add 1% sodium carbonate as well as 5% urea remedy to stir and also get rid of chlorine. After fully washing with water, cooling down as well as crystallizing, centrifugal purification, and also lastly soaking the crystals in distilled water and after that drying, drying out at 40 ° C, as well as pulverizing to obtain hexachloroethane.

Trichloroethylene as well as chlorine are likewise utilized for photochlorination in industry. Trichloroethylene reacts with chlorine to produce pentachloroethane, and after that responds with liquid antacids to create tetrachloroethylene. Perchloroethylene and also fluid chlorine (1:0.213) go through photochlorination to obtain crude items, which are after that neutralized with soda ash, washed with water, taken shape by cooling, centrifugal filtering, dried out, as well as shattered to acquire finished products. Using this method to produce hexachloroethane takes in 680kg of trichloroethylene as well as 700kg of liquid chlorine per ton of item. On top of that, carbon tetrachloride reacts with chlorine in the presence of light weight aluminum chloride, or ethylene responds with chlorine at 300-350 ° C to obtain this product.