Benzene yog tsim los ntawm ob qho tib si txheej txheem ntuj thiab tib neeg kev ua ub no. Ntuj qhov chaw ntawm benzene muaj xws li volcanoes thiab hav zoov hluav taws. Benzene kuj yog ib feem ntawm cov roj crude, roj av, thiab luam yeeb. Benzene tau siv dav hauv Tebchaws Meskas.
benzene yog dab tsi?
Cov benzene molecule yog tsim los ntawm rau cov pa roj carbon atoms koom nrog hauv lub nplhaib nrog ib lub atom hydrogen txuas rau txhua tusVim tias nws tsuas muaj cov pa roj carbon thiab hydrogen atoms, benzene raug faib ua hydrocarbon. Benzene yog ib qho tseem ceeb ntawm cov roj crude thiab yog ib qho ntawm cov khoom siv petrochemical.
Yam benzene nrhiav tau li cas?
Discovery of benzene
Benzene tau pom thawj zaug los ntawm tus kws tshawb fawb Askiv Michael Faraday hauv 1825 hauv cov roj teeb ci. Nyob rau hauv 1834 German chemist Eilhardt Mitscherlich rhuab benzoic acid nrog txiv qaub thiab tsim benzene. Xyoo 1845 German chemist A. W. von Hofmann cais benzene los ntawm thee tar.
Yuav ua li cas yog tias koj haus benzene?
Kev noj zaub mov lossis haus cov kua dej uas muaj cov benzene siab tuaj yeem ua rau ntuav, khaus plab, kiv taub hau, tsaug zog, convulsions, plawv dhia ceev, coma, thiab tuag.
Puas yog txiv neej benzene tsim?
Benzene yog tsim los ntawm cov txheej txheem ntuj tsim thiab tib neeg tsim. Nws yog ib feem ntawm cov roj crude, uas yog lub hauv paus ntawm benzene tsim hnub no. Lwm qhov chaw ntuj muaj xws li cov pa roj emissions los ntawm volcanoes thiab hav zoov hluav taws.
