2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Txhawm rau npaj acetone hauv chav kuaj, heat nws nrog anhydrous calcium acetate. Siv cov fused calcium acetate tov nrog me me hlau filings nyob rau hauv ib tug retort haum nrog ib tug dej condenser thiab ib tug receiver. Cov tshuaj tiv thaiv yog maj mam rhuab thaum acetone distils dhau thiab sau rau hauv lub receiver.
Koj ua li cas acetone?
Acetone yog tsim los ntawm cov khoom siv raw ntawm benzene thiab propylene. Cov ntaub ntawv no yog thawj zaug siv los tsim cumene, uas tom qab ntawd oxidised los ua cumene hydroperoxide, ua ntej muab faib ua phenol thiab nws cov khoom sib koom ua ke, acetone.
Acetone npaj pib li cas?
Ntshiab acetone yog cov xim tsis muaj xim, me ntsis tsw qab, flammable, mobile kua uas boils ntawm 56.2 ° C (133 ° F). … Cov txheej txheem cumene hydroperoxideyog cov txheej txheem tseem ceeb siv hauv kev lag luam tsim khoom ntawm acetone. Acetone kuj tau npaj los ntawm dehydrogenation ntawm 2-propanol (isopropyl cawv).
Yuav ua li cas acetone npaj los ntawm txoj kev distillation?
Acetone tuaj yeem npaj los ntawm cov hauv qab no:
- Dry distillation ntawm Calcium Acetate. (CH3COO)2CaΔ CH3COCH3.
- Los ntawm oxidation ntawm 2-propanol. CH3CH(OH)CH3Δ CH3COCH3.
- Los ntawm lub cev qhuav dej ntawm 2-propanol. CH3CH(OH)CH3Cu/573K CH3COCH3.
- Los ntawm kev txo qis oxidation ntawm 2-propene.
Acetone siv rau dab tsi?
Acetone yog kua solvent uas tuaj yeem zom thiab yaj lwm yam tshuaj. Cov tuam txhab muaj xws li acetone hauv cov khoom xws li ntsia thawv polish remover, xim tshem tawm, thiab kua roj vanish tshem tawm. Qee tus kuj siv acetone los tsim cov yas, lacquers, thiab textiles.
Pom zoo:
Yuav ua li cas npaj kev lag luam yuav suav nrog kev txheeb xyuas swot?
Koj txoj kev npaj ua lag luam yuav tsum yog ib txoj hauv kev uas coj txoj hauv kev ntawm koj txoj kev lag luam. Siv SWOT tsom xam los pab tib neeg nkag siab tias lawv txoj haujlwm txhais li cas rau hom phiajthiab cov ntsiab lus tseem ceeb uas koj tab tom tso rau hauv koj txoj kev npaj ua lag luam.
Qhov twg yog npaj los yog npaj?
Planned is the past tense form ntawm verb "to plan." Nws txhais tau hais tias "kev npaj, npaj, lossis npaj." Planed yog daim ntawv dhau los ntawm cov lus qhia "to plane." Nws txhais tau tias "glided los yog soared, zoo li lub dav hlau.
Vim li cas kev npaj thiab kev npaj yuav tsum tsim nyog hauv kev coj ua?
Txawm hais tias raug cai lossis tsis raug cai, nkag siab lossis tsim qauv, sau tseg lossis tsis muaj ntaub ntawv, npaj rau kev thov pab ua kom koj ko taw zoo tshaj plaws rau pem hauv ntej raws li BA thiab pab txhawb kev sib raug zoo nrog cov neeg koom nrog los ntawm kev qhia koj kom muaj nuj nqis rau lub sijhawm lawv siv nrog koj Thaum koj tab tom ua kev thov.
Rau kev npaj iodoform los ntawm acetone peb xav tau?
Kev Npaj ntawm Iodoform txheej txheem: • Dissolve 5 g ntawm iodine hauv 5 ml acetone hauv lub khob conical. tso tawm. Cia cov ntsiab lus ntawm lub khob rau sawv ntsug li 10 - 15 feeb. Lim cov av daj ntawm iodoform los ntawm Buchner funnel • Ntxuav lub precipitate nrog dej txias.
Puas tau npaj ua ntej txhais tau tias tau npaj?
Ib yam premeditated yog npaj rau qib siab thiab muaj lub hom phiaj tom qab. Hauv lwm lo lus, nws tsis muaj xwm txheej. Kev ua txhaum cai ua ntej yuav tsum ua tib zoo npaj thiab tshawb fawb ua ntej nws tshwm sim. premeditated txhais li cas?
