Isopropyl cawv, feem ntau paub tias yog kev haus cawv, yog qhov siv tshuaj tua kab mob thiab tu tus neeg sawv cev. Nws muaj nyob rau hauv ob qho kev sib txawv: 70% thiab 91%. Cov lus nug feem ntau tshwm sim nyob rau hauv lub siab ntawm cov neeg siv: uas ib qho yuav tsum kuv yuav, 70% lossis 91% isopropyl cawv? Kab lus no aims los piv thiab txheeb xyuas ob qho kev hais plaub kom pab koj tau txiav txim siab paub.

Txhawm rau pib nrog, peb saib qhov sib txawv ntawm ob qho siab. 70% isopropyl cawv muaj 70% isopropanol thiab seem uas seem 30% yog dej. Ib yam li ntawd, 91% isopropyl cawv muaj 91% isopropanol thiab seem uas seem 9% yog dej.

Tam sim no, cia peb siv lawv cov kev siv. Ob leeg feem ntau muaj txiaj ntsig hauv kev tua cov kab mob thiab kab mob. Txawm li cas los xij, qhov ntau dua ntawm 91% OroPropyl cawv muaj zog dua hauv kev tua cov kab mob tawv thiab cov kab mob uas tiv thaiv qis dua. Qhov no ua rau nws xaiv tau zoo dua rau kev siv hauv tsev kho mob thiab tsev kho mob. Ntawm qhov tod tes, 70% isopropyl cawv yog qhov ua tau zoo dua tab sis tseem ua tau zoo rau cov kab mob thiab cov kab mob zoo rau kev tu tsev neeg tu tsev neeg tu.

Thaum nws los txog rau ntawm kev muaj kev ruaj khov, 91% isopropyl cawv muaj qhov sib piv ntau dua thiab qis dua evaporation piv rau 70%. Qhov no txhais tau tias nws tseem siv tau rau lub sijhawm ntev dua, txawm tias thaum raug cua sov lossis lub teeb. Yog li ntawd, yog tias koj xav tau cov khoom lag luam ruaj khov, 91% isopropyl cawv yog qhov kev xaiv zoo dua.

Txawm li cas los xij, nws yuav tsum raug sau tseg tias ob qho siab tau yog cov nplaim taws thiab yuav tsum ua kom zoo nrog kev saib xyuas. Ib qho ntxiv, ntev nthuav tawm cov kev siv hluav taws xob siab ntawm isopropyl cawv tuaj yeem ua rau kev voos rau ntawm daim tawv nqaij thiab qhov muag. Yog li ntawd, nws yog qhov tseem ceeb kom ua raws cov lus qhia thiab kev ntsuas kev nyab xeeb muab los ntawm cov khw.

Hauv kev xaiv, kev xaiv ntawm 70% thiab 91% isopropyl cawv yog nyob ntawm koj cov kev xav tau tshwj xeeb. Yog tias koj xav tau cov khoom lag luam uas tsis muaj txiaj ntsig tawm tsam cov kab mob tawv thiab cov kab mob, tshwj xeeb hauv tsev kho mob lossis chaw kuaj ntshav yog qhov zoo dua. Txawm li cas los xij, yog tias koj tab tom nrhiav ib tus neeg ntxuav tsev lossis ib yam dab tsi uas tsis muaj txiaj ntsig zoo tab sis tseem ua tau zoo rau cov cawv feem ntau, 70% isopropyl cawv tuaj yeem yog qhov kev xaiv zoo. Thaum kawg, nws yog qhov tseem ceeb kom ua raws li kev ntsuas kev nyab xeeb muab los ntawm cov chaw tsim tshuaj paus thaum siv txhua lub concentration ntawm isopropyl cawv.