Heinrich Caro, tus kws tshuaj German, thawj zaug ua ke methylene xiav hauv xyoo 1876. Tus kws tshawb fawb Fabkis yug los Claude Wischik nrhiav pom cov hluavtaws zas xim raws li kev kho mob Alzheimer's.
Methylene xiav tsim li cas?
Methylene xiav yog synthesized lag luam los ntawm oxidation ntawm N, N-dimethyl-phenylenediamine nrog sodium dichromate (Na2Cr2O7)nyob rau hauv lub xub ntiag ntawm sodium thiosulfate (Na2S2O3), ua raws li oxidation ntxiv. nyob rau hauv lub xub ntiag ntawm N, N-dimethylaniline (NTP, 2008).
Puas methylene xiav nyab xeeb rau tib neeg?
Methylene xiav yog tshuaj nyab xeeb thaum siv tshuaj kho(<2mg / kg). Tab sis nws tuaj yeem ua rau muaj toxicity hauv cov koob tshuaj ntau.
Dab tsi yog methylene xiav siv rau hauv qhov kev sim no?
Methylene xiav yog dav siv los ua a redox indicator hauv kev tshuaj ntsuam chemistry. Cov kev daws teeb meem ntawm cov khoom no yog xiav thaum nyob rau hauv ib qho chaw oxidizing, tab sis yuav tig tsis muaj xim yog tias raug tus neeg sawv cev txo.
Vim li cas methylene xiav xim xiav?
Thaum cov tshuaj potassium hydroxide, dextrose thiab methylene xiav yog shaken, cov pa oxygen dissolves rau hauv cov xim tsis muaj xim ua rau methylene xiav oxidize rau hauv nws daim ntawv xiav.
