Boiling point tsom xam ntawm acetic acid: kub, influencing yam thiab kev siv
Acetic acid (chemical formula CH₃COOH), tseem hu ua acetic acid, yog cov organic acid uas tau siv dav hauv kev lag luam tshuaj, khoom noj thiab tshuaj. Lub cev muaj zog ntawm acetic acid, tshwj xeeb tshaj yog nws cov boiling point, yog qhov tseem ceeb rau cov txheej txheem tsim khoom thiab kev siv hauv kev lag luam tshuaj. Hauv tsab xov xwm no, peb yuav txheeb xyuas cov ntsiab lus kub ntawm acetic acid kom ntxaws, sib tham txog nws cov yam ntxwv cuam tshuam thiab nws qhov tseem ceeb hauv cov ntawv thov sib txawv.
Lub ntsiab lus tseem ceeb ntawm qhov kub kub ntawm acetic acid
Qhov kub ntawm acetic acid yog 117.9 ° C (244.2 ° F), uas yog ntsuas ntawm tus qauv atmospheric siab (1 cua, 101.3 kPa). Ntawm qhov kub no, acetic acid hloov los ntawm cov kua mus rau cov pa roj, uas yog ib qho tseem ceeb hauv ntau cov txheej txheem tshuaj. Acetic acid muaj qhov kub kub kub piv rau lwm cov organic tebchaw, uas feem ntau yog vim muaj cov hydrogen bonds ntawm nws cov molecules.
Cov yam ntxwv cuam tshuam rau lub boiling point ntawm acetic acid
Txawm hais tias tus qauv boiling point ntawm acetic acid yog 117.9 ° C, nyob rau hauv kev xyaum no kub yog cuam tshuam los ntawm ntau yam. Lub siab muaj qhov cuam tshuam tseem ceeb rau qhov kub kub. Ntawm qhov qis qis (piv txwv li, lub tshuab nqus tsev), qhov kub ntawm cov acetic acid txo qis, thaum nyob rau hauv ib puag ncig siab, nws cov ntsiab lus kub nce. Yog li ntawd, thaum lub sij hawm muaj distillation, regulating lub siab ntawm lub system yuav zoo tswj lub boiling thiab sib cais efficiency ntawm acetic acid.
Cov impurities hauv cov tshuaj kuj tuaj yeem cuam tshuam rau qhov kub siab ntawm acetic acid. Tshwj xeeb tshaj yog thaum acetic acid sib tov nrog lwm cov tshuaj, nws cov ntsiab lus kub yuav txawv ntawm tus qauv tsim nyog. Piv txwv li, nyob rau hauv aqueous daws, lub boiling point ntawm acetic acid yuav txo tau vim azeotropic phenomena. Kev nkag siab thiab tswj xyuas cov xwm txheej no yog qhov tseem ceeb txhawm rau txhim kho cov txheej txheem tshuaj lom neeg.
Daim ntawv thov ntawm Acetic Acid Boiling Points hauv Kev Lag Luam
Cov ntsiab lus kub ntawm acetic acid tsis yog tsuas yog ib qho tseem ceeb rau nws lub cev lub cev, nws tseem yog ib qho tseem ceeb hauv kev cuam tshuam nws daim ntawv thov hauv ntau cov txheej txheem kev lag luam. Ib daim ntawv thov raug yog distillation thiab purification ntawm acetic acid. Hauv kev tsim tshuaj lom neeg, kev tswj xyuas meej ntawm qhov boiling point yog ib kauj ruam tseem ceeb ntawm kev tau txais cov purity acetic acid. Hauv kev tsim cov acetate thiab acetate esters, cov kev cai ntawm lub boiling point ntawm acetic acid kuj muaj kev cuam tshuam ncaj qha rau cov khoom zoo thiab kev tsim khoom.
Cov ntsiab lus kub ntawm acetic acid kuj muaj cov ntawv thov tseem ceeb hauv kev saib xyuas ib puag ncig thiab kev kho cov txheej txheem. Kev kho cov dej khib nyiab lossis cov roj khib nyiab uas muaj acetic acid tuaj yeem ua tiav los ntawm volatilising acetic acid los ntawm cua sov. Yog li ntawd, mastering lub boiling point ntawm acetic acid thiab nws cov kev hloov txoj cai yog ib qho tseem ceeb heev rau tsim ib tug npaum txoj kev kho.
Cov ntsiab lus
Lub ntsiab lus kub ntawm acetic acid yog ib qho tseem ceeb ntawm lub cev tsis zoo nrog rau kev siv dav hauv kev lag luam tshuaj. Kev nkag siab thiab paub txog qhov cuam tshuam ntawm cov ntsiab lus kub ntawm acetic acid, xws li cov ntsiab lus siab thiab impurity, tuaj yeem pab cov engineers thiab cov kws tshaj lij txhim kho cov txheej txheem tsim khoom thiab txhim kho cov khoom zoo. Kev siv ntau yam ntawm qhov kub kub ntawm acetic acid hauv kev lag luam kuj tseem qhia txog nws qhov tseem ceeb hauv kev tsim khoom thiab kev tiv thaiv ib puag ncig. Hauv kev tshawb fawb thiab kev siv yav tom ntej, kev tshuaj xyuas qhov tob ntawm qhov kub thiab txias ntawm acetic acid yuav txuas ntxiv coj cov thev naus laus zis ntau ntxiv rau kev lag luam tshuaj.