thaum twg yog pom siv nyob rau hauv chemistry

Nws yog qhov tseeb tias kev lim dej yog qhov tseem ceeb hauv ntau cov txheej txheem tshuaj. Lim yog siv thaum tsim nyog los cais cov khoom ntawm cov kua, los yog tshem tawm impurities los ntawm cov kua.

Hauv kev lag luam tshuaj, kev lim dej yog siv ntau yam kev siv. Qee qhov piv txwv suav nrog kev ua kom huv ntawm cov tshuaj, xws li tshuaj, dyes, thiab pigments. Kev lim dej kuj tseem siv rau hauv kev tsim cov dej haus, nrog rau kev kho cov dej khib nyiab.

Lim yog txheej txheem tseem ceeb hauv kev tsim cov khoom sib nqus sib txawv. Piv txwv li, cov ntxaij lim dej sib nqus tau siv rau hauv kev tsim cov ntaub nplaum sib nqus thiab cov disks, uas lawv tau siv los tshem tawm cov impurities uas tuaj yeem ua rau cov khoom kawg. Magnetic filtration kuj tseem siv rau hauv kev tsim cov hmoov sib nqus, qhov twg nws yog siv los cais thiab ntxuav cov ntaub ntawv raw.

Ntxiv nrog rau kev sib nqus filtration, muaj ntau lwm hom kev pom uas siv hauv chemistry. Cov no muaj xws li lub ntiajteb txawj nqus filtration, nqus pom, thiab siab pom. Txhua hom kev pom muaj nws tus kheej qhov zoo thiab qhov tsis zoo, thiab kev xaiv ntawm hom kev pom zoo nyob ntawm qhov xav tau tshwj xeeb ntawm daim ntawv thov.