Peb yuav tsum ntxuav khaub ncaws txhua hnub. Peb siv los ntxuav cov khaub ncaws nrog ntxuav cov hmoov, tab sis tom qab kev lag luam tau pib ntxuav cov kua, yog li cov neeg feem coob tig mus siv cov kua ntxuav. Puas yog kev ntxuav cov kua yeej huv dua li ntxuav cov hmoov? Qhov twg yog qhov zoo dua, ntxuav hmoov lossis kua?
1. Kev txiav txim siab ntawm kev siv
Coob tus neeg xav tias kev ntxhua khaub ncaws yuav hlawv lawv txhais tes thiab cov kua ntxhua khaub ncaws yuav mob me. Qhov no yog vim tias muaj phosphorus hauv lub tshuab ntxuav hmoov ua ntej. Yog tias koj kov nws ntev, koj txhais tes yuav liab. Tab sis tam sim no cov hmoov ntxhua khaub ncaws, tau txhim kho cov taw tes no, yuav tsis ntxiv phosphorus rau cov hmoov ntxhua khaub ncaws, yog li nws tseem mob sib khuav. Tam sim no neeg feem coob siv tshuab ntxhua khaub ncaws ntxhua khaub ncaws, yog li yuav tsis muaj qhov sib txawv hauv qhov paub siv.
2. Nyob rau hauv cov nqe lus ntawm solubility
Yog tias nws yog ntxuav tes khaub ncaws, cov kua ntxhua khaub ncaws yuav zoo dua soluble hauv dej, yaug zoo dua, thiab yooj yim dua. Tab sis cov hmoov ntxhua khaub ncaws yog tawv, yog li nws tsis tuaj yeem tiv thaiv dej hauv dej. Nws yuav tsum tau yaug ntau lub sijhawm kom huv. Yog tias nws lub tshuab ntxhua khaub ncaws, tsis muaj qhov sib txawv hauv qhov no, vim hais tias lub tshuab ntxhua khaub ncaws ntawm lub tshuab ntxhua khaub ncaws tuaj yeem muab ntxuav tau zoo.
3. Los ntawm qhov pom ntawm kev txiav txim siab lub peev xwm
Kev tu huv yog qhov tseem ceeb tshaj plaws rau peb kom yuav cov tshuaj ntxuav tsev ntxhua khaub ncaws. Tom qab txhua tus, lub hom phiaj ntawm kev ntxhua khaub ncaws yog ntxuav lawv, uas tseem txiav txim siab uas peb yuav yuav. Lub xab npum ntawm kev ntxhua khaub ncaws hmoov zoo dua li ntawm cov kua ntxhua khaub ncaws, vim tias muaj tus neeg sawv cev txhuam hauv kev ntxhua khaub ncaws, uas tuaj yeem ua kom muaj kev sib txhuam ntawm cov khaub ncaws, yog li cov stains yuav yooj yim dua. Lub xab npum yuav tsis muaj zog, tab sis zoo li cov khaub ncaws rau lub caij ntuj sov, yog tias tsuas yog tshem tawm hws, nws tseem tuaj yeem ua tau raws li qhov ua kom tshem tawm.
