Four ethyl chloride-Hongye silicone

Four ethyl chloride is physicochemical constants of material from the appearance point of view, it is colorless and heavy liquid, and the smell of chloroform. Slightly soluble in water, soluble in ethanol, ethyl ether, relative density ( =1 ) of 1.60, usually used as a solvent, used in organic synthesis. Physicochemical constants of four chloro ethane    Four ethyl chloride GB No. 61556 No. CAS 79-34-5 Chinese name 1, 1, 2, 2- four ethyl chloride English names of 1, 1, 2, 2-tetrachloroethane; acetylene tetrachloride don't name four chloride acetylene; four symmetrical chloroethane molecular formula C2H2Cl4; the molecular weight of CHCl2CHCl2 167.86 vapor pressure of 1.33kPa ( 32 ℃) melting point -43.8 ℃boiling point: 146.4 the solubility of slightly soluble in water, soluble in ethanol, ether, density, relative density ( =1 ) of 1.60 stability stable risk marker 14 ( drugs ) mainly used as a solvent, used in organic synthesis. Four effects of ethyl chloride on the environment The matter may be dangerous to the environment, in the groundwater in the cumulative effect. In the human food chain, especially in aquatic organisms accumulation. A, health hazards pathways: inhalation, ingestion, absorption through the skin. Health hazards: the anesthetic effect and inhibitory effects on the central nervous system, can cause liver, kidney and myocardial damage. Short-term inhalation is mainly mucous membrane irritation. Acute and subacute toxicity mainly for digestive and nervous system symptoms. There can be loss of appetite, vomiting, abdominal pain, hepatomegaly, ascites. Long-term inhalation may cause weakness, headache, insomnia, constipation or diarrhea, liver damage and polyneuritis. Two, toxicology information and environmental behavior toxicity: chlorinated hydrocarbons poisoning of a larger. Acute toxicity test: LD50800mg/kg ( rat oral ); LC504500mg/m3,2 hours ( mice inhaled ); inhalation of 1g/m × 30 minutes, respiratory tract mucous membrane irritation, fatigue, dizziness, head sink; inhalation of 2～ 3g/m3 × 10 minutes, respiratory tract mucous membrane irritation, fatigue, dizziness, head sink. Subacute and chronic toxicity: mice inhaled 47.9g/m3 x 2 hours / day x 5 days, death, liver injury; mice inhaled 3.0g/m3 × 5 ~ 6 hours / day x 4 days, death, myocardial damage; rats inhaled 47.9g/m3 x 2 hours / day x 5 days later, excited, liver damage, death. Mutagenicity: microbial mutagenicity: Salmonella typhimurium 200ul/ dish microsome mutagenicity: Salmonella typhimurium 200ul / dish. Carcinogenicity: IARC carcinogenicity: animal as suspicious reaction. Rat ( Osborne-Mendel) was 43 ~ 108mg/kg/× 78 weeks, liver cancer and tumor nodules appear. Hazardous characteristics: in case of fire, high-heat combustible. Heat generated by the decomposition of corrosive gas, toxic. With alkali metal reacts violently. Combustion ( decomposition ) products: carbon monoxide, carbon dioxide, hydrogen chloride.