nature
Colorless liquid with special pungent odor. Insoluble in water, soluble in ethanol, ether and benzene, at 15ºC with water or alkali aqueous solution to produce benzoic acid and hydrochloric acid. Risk of combustion and explosion in contact with open flame, high heat or oxidant. The reaction with water heats up and releases toxic corrosive gases. It's corrosive.
preparation
Toluene was obtained by side chain chlorination of toluene with chlorine gas under light condition, and then hydrolyzed in acidic medium. Or benzoic acid reacts with light. It can also be obtained by reacting benzoic acid with silicon tetrachloride.
use
It can be used in the gel fracturing fluid crosslinked by non-ionic vegetable gum and amphoteric metal oxate. Generally not used alone, it is often used in combination with persulfate. It is also used in the production of dye intermediates, benzophenone ultraviolet absorbers, rubber auxiliaries, medicine, etc.
security
Rat transoral LD50: lOOOmg/kg. Rats were inhaled 2h LC50:1870mg/m3. It has lacrimal irritation, irritation to skin, mucosa, eyes and respiratory tract, and paralysis to the central nervous system. Store in a dry and clean warehouse. Keep away from fire and heat. The retainer is sealed. Handling in nitrogen. It has a strong irritating effect on the eyes, skin, mucosa and respiratory tract.
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