Nqus Lim - tseem hu ua Buchner filtration - rau thaum koj xav tau cais cov precipitate (cov khoom) Pom nyob rau hauv lub tshuab nqus tsev sivBuchner funnel yog siv thaum koj xav cais tawm cov nag lossis daus (cov khoom) rau kev ua haujlwm ntxiv lossis kev tshuaj xyuas.
Dab tsi yog qhov zoo ntawm Buchner pom?
Qhov txiaj ntsig tseem ceeb hauv kev siv hom kev pom no yog nws ua sai dua (ntau qhov kev txiav txim siab ntau) dua li cia cov kua ntws tawm los ntawm cov lim nruab nrab ntawm lub zog ntawm lub ntiajteb txawj nqus.
Lub hom phiaj ntawm Buchner funnel yog dab tsi?
Buchner funnels yog siv hauv chav kuaj rau nqus-pab kua lim. Nyob rau hauv cov organic chemistry, cov funnels no yog siv los sau recrystallized compounds vim hais tias lawv pab tshem tawm noo noo los ntawm cov khoom kawg.
Vim li cas kev nqus pom zoo dua rau kev nqus pom?
Lub ntiajteb txawj nqus pom yog qhov zoo dua thaum cov lim tau khaws cia raws li qhov nqus tau muaj peev xwm rub cov khoom me me los ntawm cov ntawv lim qhov pores, muaj peev xwm tsim cov lim paug nrog cov khoom sib xyaw.
Vim li cas thiaj siv lub ntiajteb txawj nqus kub?
Kev nqus dej kub feem ntau yog siv txhawm rau tshem tawm cov impurities ntawm cov tshuaj ua ntej recrystallization. Kub pom yog tsim nyog rau recrystallization thaum impurities muaj nyob rau hauv kev daws. … Cov impurity ces lim tawm thaum kubLub ntiajteb txawj nqus filtration txheej txheem.
