Yuav ua li cas ua kom cov kua qaub extraction ua haujlwm?
Yuav ua li cas ua kom cov kua qaub extraction ua haujlwm?

Video: Yuav ua li cas ua kom cov kua qaub extraction ua haujlwm?

Video: Yuav ua li cas ua kom cov kua qaub extraction ua haujlwm?
Video: Qhov tseem ceeb ntawm koj mus txhaj koob tshuaj COVID-19 rau zaum ob (Hmong) 2024, Lub peb hlis ntuj
Anonim

Lub tswv yim qab ib kua qaub - lub hauv paus extraction yog siv cov kua qaub - puag cov khoom ntawm cov organic tebchaw thiab xaiv cais lawv ntawm ib leeg thaum lawv nyob hauv kev sib tov. Hauv cov organic chemistry, kua qaub yog lub npe hu ua carboxylic kua qaub thiab muaj cov pab pawg ua haujlwm -COOH.

Ib yam li ntawd, lub hom phiaj ntawm kev tshem tawm cov kua qaub yog dab tsi?

Ib kua qaub - lub hauv paus extraction yog hom kua-kua rho tawm . Acid - lub hauv paus extraction feem ntau yog siv los cais cov organic sib txuas ntawm ib leeg raws li lawv kua qaub - puag khoom. Txoj kev nyob ntawm qhov kev xav tias feem ntau cov organic tebchaw muaj ntau dua soluble hauv cov kuab tshuaj organic dua li lawv nyob hauv dej.

Tsis tas li ntawd, cov txheej txheem ntawm kev rho tawm yog dab tsi? Kev rho tawm yog a txheej txheem nyob rau hauv uas ib los yog ntau lub Cheebtsam raug cais xaiv los ntawm ib tug ua kua los yog cov khoom sib tov, pub (Phase 1), los ntawm cov kua immiscible hnyav (Phase 2). Tom qab ntawd txhawm rau txhawm rau rov tsim cov kuab tshuaj, lwm qhov kev sib cais (piv txwv li distillation) yog qhov kawg.

Xav txog qhov no, vim li cas Naoh siv rau hauv kev rho tawm?

Qhov tshwm sim no feem ntau yuav pom yog tias sodium bicarbonate yog siv rau cov rho tawm thiaj li yuav neutralize los yog tshem tawm acidic tebchaw. Cov tshuaj tiv thaiv them nyiaj carbon dioxide (CO2), uas yog ib qho roj ntawm ambient kub. Lub siab ua kom thawb qee cov roj thiab cov kua tawm.

Yuav ua li cas koj qhia ib tug acid los ntawm lub hauv paus?

Rau txiav txim seb ib yam khoom yog ib qho kua qaub los yog a puag , suav cov hydrogens ntawm txhua yam khoom ua ntej thiab tom qab cov tshuaj tiv thaiv. Yog hais tias tus naj npawb ntawm hydrogens tau txo cov tshuaj no kua qaub (paub hydrogen ions). Yog hais tias tus naj npawb ntawm hydrogens tau nce cov khoom ntawd yog qhov puag (txais hydrogen ions).

Pom zoo: