Video: Vim li cas nws tseem ceeb kom qhuav cov organic theem ua ntej tshem tawm cov kuab tshuaj?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Cov ziab tus neeg sawv cev ua haujlwm rau tshem tawm dej kom cov 100C feem raug tshem tawm rau distillation, tab sis kuj yuav nqus dej thiab cov impurities nqa nyob rau hauv lub dej theem . Yog tias koj txhawj xeeb txog qhov purity ntawm koj cov khoom, ziab nws ua rau kom muaj feem ntau tshem tawm ua tau impurities.
Ib yam li ib tug yuav nug, vim li cas nws thiaj li yuav tsum tau siv lub tshuab ziab khaub ncaws ua ntej tshem tawm cov organic hnyav ntawm cov evaporator teb?
Vim li cas lawv thiaj siv A tshuab ziab khaub ncaws yog swirled nrog ib organic daws rau tshem tawm taug qab cov dej. Ntau organic kuab tshuaj dissolve ib feem tseem ceeb ntawm cov dej (Table 4.6) uas yuav tsum tau muab tshem tawm ua ntej rotary evaporation, los yog lwm yam dej yuav pom nyob rau hauv cov khoom concentrated.
Tsis tas li ntawd, nws txhais li cas kom qhuav cov tshuaj organic? Qhuav ntawm organic tshuaj txhais tau tias tshem tawm cov dej noo (dej) los ntawm lub organic kuab tshuaj.
Ib yam li ntawd, tib neeg nug, vim li cas cov tshuaj ziab khaub ncaws siv hauv kev rho tawm?
A tshuab ziab khaub ncaws yog tshuaj siv tshem tawm cov dej los ntawm cov organic compound uas yog nyob rau hauv kev daws. Hauv kev tsim lossis cais cov tshuaj sib xyaw ua ke lawv feem ntau ua paug nrog dej. Cov ntshiab compound tuaj yeem raug cais tawm ntawm cov ntsev tov txheej.
Lub hom phiaj ntawm kev ntxuav cov organic txheej nrog dej yog dab tsi?
Cov lub hom phiaj ntawm no ntxuav yog tshem tawm ntau npaum li cas dej tshaj yuav yaj nyob rau hauv lub organic txheej . Txawm tias cov organic txheej yuav tsum ib txwm raug tom qab raug tus neeg ua kom qhuav (xws li anhydrous sodium sulfate, magnesium sulfate, los yog calcium chloride), cov reagents ntawm qhov zoo tshaj plaws tshem tawm tsuas yog me me. dej.
Pom zoo:
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