Dab tsi yog txheej txheem ntawm cov tshuaj yej sai

Cov txheej txheem tshuaj yej tam sim no suav nrog: kev xaiv dej, cov khoom siv cov khoom siv, lim dej, kev ua kom huv, thiab ziab khaub ncaws, thiab ziab. Cov tshuaj yej tam tsi yog tsis yooj yim rau concenting thiab qhuav cov tshuaj yej kua zaub. Nws yuav tsum siv cov tech-tech txhais tau tias kom kov yeej qhov tsis zoo ntawm insoluble, deliquescent, thiab tsis muaj tshuaj yej. Vim tias cov kev xav thiab ziab khaub ncaws nrawm yog qhov tseem ceeb, nws yog qhov tseem ceeb tshaj plaws, yooj yim los hloov cov tshuaj yej, thiab cov tshuaj yej yog yooj yim rau xim av. Yog li ntawd, nws tau kawm txog siv cov ntsuas kub niaj hnub kev saib xyuas thev naus laus zis, thiab cov nyhuv yog qhov zoo heev. Qhov thiaj li hu ua membrane kev pom zoo yog xaiv lub ntsej muag ib nrab, thiab tso tawm cov tshuaj pleev dej kom dhau los, thiab cov tshuaj pleev xim rau cov tshuaj yej tsis tuaj yeem hla dhau. Txo cov dej kom muaj qee yam kom ua tiav lub hom phiaj ntawm kev xav.

Muaj ob txoj hauv kev rau ziab khaub ncaws tam sim ntawd, ib qho yog tsuag kom qhuav, thiab lwm yam yog khov kom qhuav. Ua ntej cov tshuaj tsuag ziab, cov pa roj carbon dioxide tau qhia rau hauv cov tshuaj yej kua zaub tob, yog li cov tshuaj yej kua txiv yog muaj cov roj av me me. Thaum cov tshuaj tsuag ua ke thiab qhuav, cov pa roj carbon dioxide khiav tawm, thiab cov tshuaj yej hmoov ua ib qho me me hauv nruab nrab, uas tuaj yeem nce cov solubility tam sim no. Cov. Yog tias cov tshuaj yej tau ntxiv nrog cov piam thaj thiab kua txiv, nws yuav raug rhaub lossis khov-qhuav. Cov khoom lag luam zoo li maltex. Khov-kom qhuav yog txhawm rau txo qhov kub ntawm cov tshuaj yej ua kom sov, tom qab ntawd txiav txim siab cov tshuaj yej, tshwj xeeb solubility, kub thiab txias solubility, kub thiab txias tov kab.