Cov txheej txheem:
- Yuav ua li cas yog qhov solubility ntawm quercetin hauv dej?
- Puas yog quercetin roj soluble?
- YPuas yog quercetin soluble hauv acetone?
- Yuav ua li cas ua kom Kaempferol?
Video: Ntawm solubility ntawm quercetin?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Quercetin (hydrate) yog soluble hauv cov kuab tshuaj organic xws li ethanol, DMSO, thiab dimethyl formamide (DMF). Lub solubility ntawm quercetin (hydrate) hauv cov kuab tshuaj no yog kwv yees li 2 mg / ml hauv ethanolthiab 30 mg / ml hauv DMSO thiab DMF. Quercetin (hydrate) yog soluble nyob rau hauv aqueous buffers.
Yuav ua li cas yog qhov solubility ntawm quercetin hauv dej?
Lub aqueous solubility ntawm anhydrous quercetin varied ntawm 0.00215 g / L ntawm 25 ° C rau 0.665 g / L ntawm 140 ° Cthiab cov quercetin dihydrate txawv ntawm 0.00263 g / L ntawm 25 ° C rau 1.49 g / L ntawm 140 ° C. Lub aqueous solubility ntawm quercetin dihydrate zoo ib yam li cov anhydrous quercetin mus txog 80 ° C.
Puas yog quercetin roj soluble?
Qhov no txhais tau hais tias cov txiaj ntsig kev noj qab haus huv ntawm quercetin tuaj yeem ntsib hauv feeb ntawm kev noj mov thiab yuav kav ntev li ib hnub lossis ntau dua. Yog vim li cas rau qhov kev tiv thaiv txhua hnub no yog quercetin, zoo li ntau phytochemicals, yog fat-soluble.
YPuas yog quercetin soluble hauv acetone?
Lub solubility tau cuam tshuam los ntawm ob qho tib si ntawm cov kuab tshuaj thiab cov qauv flavonoid. Kev solubility siab tshaj plaws tau txais hauv acetonitrile rau hesperetin (85 mmol·L-1) thiab naringenin (77 mmol·L-1) thiab hauv acetone (80 mmol·L-1) rau quercetin.
Yuav ua li cas ua kom Kaempferol?
Rau qhov siab tshaj plaws solubility hauv aqueous buffers, kaempferol yuav tsum xub ua dissolved hauv ethanol thiab tom qab ntawd diluted nrog aqueous buffer ntawm kev xaiv. Kaempferol muaj qhov solubility ntawm kwv yees li 0.2 mg / ml hauv 1: 4 kua ethanol: PBS (pH 7.2) siv txoj kev no.
Pom zoo:
Puas ionic compounds muaj tsawg solubility?
Ionic tebchaw yog feem ntau soluble nyob rau hauv polar solvents zoo li dej, vim hais tias cov ions ntawm cov khoom muaj zog attracted rau lub polar solvent molecules. Ionic tebchaw yog tsawg soluble yog cov kuab tshuaj uas muaj cov ion ntau ion Cov nyhuv ion feem ntau yog hais txog qhov txo qis hauv kev solubility ntawm ionic precipitate los ntawm kev ntxiv rau kev daws ntawm cov tshuaj soluble nrog ib qho ion hauv ntau nrog nag lossis daus.
Puas solubility nce nrog concentration?
Qhov ntawm qhov solubility ntawm ib yam khoom nyob rau hauv ib qho hnyav yog ntsuas raws li qhov saturation concentration, qhov twg ntxiv cov kuab tshuaj ntxiv tsis ua kom cov concentration ntawm cov tshuaj thiab pib los nag. tus nqi ntau dhau ntawm solute .
Ntawm solubility hauv dej?
Dej solubility yog ntsuas ntawm cov tshuaj lom neeg uas tuaj yeem yaj hauv dej ntawm qhov kub thiab txias. Chav tsev ntawm solubility feem ntau yog nyob rau hauv mg / L (milligrams ib liter) los yog ppm (qhov ib lab) . Yuav ua li cas rau solubility hauv dej?
Vim li cas lub solubility ntawm glauber ntsev ua ntej nce?
Vim li cas qhov solubility ntawm Glauber ntsev nce ua ntej? Txog li 32.4∘C, Glauber cov ntsev tseem nyob hauv daim ntawv hydrated uas nws qhov kev sib cais yog endothermic. Li no, nws solubility nce nrog qhov kub thiab txiasTshaj li 32.4∘C, nws hloov mus rau hauv cov ntsev uas tsis muaj dej uas nws qhov kev sib cais yog exothermic .
Yuav ua rau kom cov solubility ntawm cov kuab tshuaj feem ntau?
Rau ntau cov khib nyiab yaj hauv cov dej ua kua, solubility nce nrog qhov kub thiab txiasKev nce hauv lub zog kinetic uas los nrog qhov kub siab dua tso cai rau cov kuab tshuaj molecules kom zoo dua sib cais cov kuab tshuaj molecules uas tau tuav ua ke los ntawm kev sib txuas lus sib txuas .
