Kev siv ntawm kev siv distillation thiab rectification
Distillation thiab rectification feem ntau yog siv rau cov kua, lossis tshuaj lom neeg cov tshuaj ua kua tuaj yeem ua dej los ntawm cua sov, tshwj xeeb tshaj yog rau kev ua kom huv ntawm cov organic tshuaj reagents. Ua ntej distillation lossis rectification, qee yam tshuaj tua kab mob qee zaum yuav ntxiv rau cov tshuaj lom neeg nrog cov tsis huv hauv cov tshuaj reagent kom raug tsim los ua cov tshuaj uas muaj cov ntsiab lus siab dua (lossis qis dua), uas yooj yim dua rau lub sijhawm tshem tawm lossis kho dua.