Kev Kho Tshuaj Kho Mob ntawm Silica Gel

Cov tshuaj formula yog xSiO2 · yH2O. Pob tshab lossis mis nyuj dawb dawb ua cov khoom. Nws muaj cov qauv ntxeem tau qhib, muaj zog nqus tau, thiab tuaj yeem nqus tau ntau yam tshuaj. Ntxiv dilute sulfuric acid (los yog hydrochloric acid) rau cov kua dej ntawm cov iav thiab cia nws sawv los tsim cov kua dej silicic acid gel thiab ua kom khov. Ntxuav nrog dej kom tshem cov electrolyte Na + thiab SO4 2- (Cl-) ions yaj hauv nws. Tom qab ziab, tuaj yeem tau txais silica gel. Yog tias nws nqus dej noo, qee qhov silica gel nqus dej noo mus txog 40% lossis txawm tias 300%. Nws yog siv rau roj kom qhuav, nqus dej, ua kom lub cev qhuav dej, chromatography, thiab lwm yam. Yog tias cobalt chloride ntxiv, nws yuav xiav thaum qhuav, thiab liab tom qab nqus dej. Nws kuj tseem tuaj yeem rov tsim dua thiab siv dua.