Ethyl acetate boiling taw tes tsom xam: Cov khoom yooj yim thiab cuam tshuam rau cov ntsiab lus
Ethyl acetate (EA) yog ib hom organic sib txuas nrog ntau cov ntawv thov. Nws yog feem ntau siv los ua cov kuab tshuaj, tsw qab thiab khoom noj ntxiv, thiab yog cov kev nyiam rau nws txoj kev tsis sib xws thiab txheeb ze kev nyab xeeb. Nkag siab txog cov khoom tseem ceeb thiab cov yam cuam tshuam rau kev npau taws ntawm kev ua kom zoo ntawm Ethyl acetate yog qhov tseem ceeb rau nws cov kev siv.
Lub cev lub cev lub cev ntawm Ethyl acetate
Ethyl acetate yog cov kua tsis muaj kob uas muaj cov txiv hmab txiv ntoo-zoo li ntxhiab tsw. Nws muaj cov mis molecular c₄h₈o₂ thiab lub cev hnyav ntawm 88.11 g / mol.Qhov npau taws ntawm Ethyl acetate yog 77.1 ° C (350.2 k) ntawm atmospheric siab. Qhov no npau tes no ua rau nws yooj yim mus rau thaum chav tsev kub, ua rau nws siv nyob rau hauv ntau cov ntawv thov kev xaiv nyob qhov twg evaporation sai.
Yam cuam tshuam rau lub boiling taw tes ntawm Ethyl acetate

Muaj txiaj ntsig ntawm sab nraud siab:

Lub boiling taw tes ntawm ethyl acetate yog ze rau kev tiv thaiv ambient siab. Nyob rau ntawm cov qauv ntsuas cua lub siab, qhov npau taws ntawm kev ua haujlwm ntawm Ethyl acetate yog 77.1 ° C. Txawm li cas los xij, raws li lub siab txo, lub boiling point tsawg zuj zuj. Cov cuab yeej no tseem ceeb heev hauv kev siv cov distillation, tshwj xeeb tshaj yog nyob rau hauv lub tshuab cua ntawm Ethyl acetate tuaj yeem txo qhov ua tau zoo ntawm kev sib cais thiab txheej txheem purification.

Ntxim ntawm Purity thiab sib xyaw:

Lub purity ntawm Ethyl acetate kuj muaj cov nyhuv ntawm nws boiling taw tes. Kev Purity Ethyl acetate muaj qhov sib luag uas sov taw tes uas yuav hloov thaum nws sib xyaw nrog lwm cov kuab tshuaj lossis tshuaj lom neeg. Qhov tshwm sim ntawm azerotropy ntawm kev piv txwv yog ib qho piv txwv ntawm kev sib xyaw ua ke nrog cov khoom sib xyaw ua ke nrog qhov sib xyaw kom zoo rau qhov kub thiab txias.

Kev sib txuam nrog kev sib cuam tshuam:

Kev sib xyaw ua ke, xws li hydrogen tsev lossis van der waals rog, tsis muaj zog nyob hauv ethyl acetate tab sis tseem muaj kev hloov maj mam rau nws lub boiling taw tes. Vim yog tus qauv ether acetate molecule, cov intronolecular van der waquals rog yog qhov me me, ua rau muaj qhov qis boiling point. Nyob rau hauv kev sib piv, tshuaj nrog cov kev sib txuas lus muaj zog sib xyaw feem ntau muaj ntau cov ntsiab lus npau npau.

Boiling taw tes ntawm Ethyl acetate hauv kev lag luam

Ethyl acetate muaj lub qhov cub npau npau ntawm 77.1 ° C, ib qho cuab yeej uas tau ua rau nws cov kev siv tshuaj ntau thoob plaws hauv kev lag luam, tshwj xeeb thiab cov nplaum. Nws qhov qis boil point tso cai rau ethet exethate mus rau vapaporate sai sai, muab cov solubility zoo thiab yooj yim ntawm kev tuav. Hauv kev lag luam kws tshuaj, Ethyl Acetate yog feem ntau siv rau cov khoom siv organic, raws li nws cov khoom tawg boiling ntawm cov phiaj sib txuas thiab kev tsis sib haum.

Mus rau constumize

Nkag siab txog lub boiling taw tes ntawm ethyl acetate thiab qhov uas cuam tshuam nws yog qhov tseem ceeb rau kev tsim thiab kev thov hauv kev lag luam tshuaj. Los ntawm kev tswj hwm tau zoo ambient siab, tswj cov khoom siv purity, thiab noj rau hauv cov kev sib txuam nrog ethyl acetate siv tuaj yeem ua tau zoo. Qhov tseeb tias Ethyl acetate muaj qhov cub npau npau ntawm 77.1 ° C ua rau nws cov kuab tshuaj tseem ceeb thiab kev siv nruab nrab hauv ntau cov ntawv thov.