Perchloroethylene (PCE, los yog tetrachloroethylene) tau siv txij li thaum the 1930s.
Thawj lub tshuab ziab khaub ncaws qhib thaum twg?
Cov qhab nia rau kev ua lag luam ua ntej lub tshuab ziab khaub ncaws mus rau lub tuam txhab ntawm Jolly-Belin, uas tau qhib hauv 1825 hauv Paris, raws li Phau Ntawv Qhia Txog Cov Ntsiab Lus.
Thaum twg chlorinated cov kuab tshuaj ua ntej siv?
Lawv tau tsim thawj zaug hauv tebchaws Yelemes hauv xyoo 1800, thiab siv dav hauv Tebchaws Meskas (Asmeskas) pib tom qab Tsov Rog Ntiaj Teb Zaum II. Nyob rau lub sijhawm xyoo 1940-1980, Tebchaws Asmeskas tau tsim txog li 2 billions ntawm cov kuab tshuaj chlorinated txhua xyoo.
kev ziab qhuav tuaj qhov twg?
Kev lig kev cai, Jean Baptiste Jolly ntawm Fabkis feem ntau yog hu ua leej txiv ntawm kev tu qhuav niaj hnub. Zaj dab neeg hais tias xyoo 1825, ib tug poj niam uas tsis saib xyuas tau khob lub teeb thiab nchuav turpentine rau ntawm daim ntaub qias neeg. Jolly pom tias ib zaug cov turpentine qhuav, cov stains uas tau ua rau daim ntaub ploj mus.
Puas Perchlorethylene puas tseem siv los ntxuav qhuav?
Perchloroethylene ("perc") tau ntev tau lees paub tias yog siv tau cov tshuaj ntxuav kom qhuavthiab niaj hnub no nws yog nyob deb ntawm cov tshuaj hnyav tshaj plaws hauv khw muag khoom qhuav. Txawm li cas los xij, raws li cov organic hnyav hnyav, perc tuaj yeem ua rau muaj kev phom sij loj rau kev noj qab haus huv yog tias tsis raug tswj kom raug.
