Acetone boiling point tsom xam thiab muaj feem cuam tshuam
Acetone, tseem hu ua dimethyl ketone, yog ib qho tseem ceeb organic hnyav nrog ntau yam kev siv hauv kev lag luam tshuaj. Kev nkag siab txog qhov kub ntawm acetone yog qhov tseem ceeb rau kev tsim thiab kev ua haujlwm ntawm cov txheej txheem tshuaj. Hauv daim ntawv no, peb yuav txheeb xyuas qhov kub thiab txias ntawm acetone hauv cov ncauj lus kom ntxaws thiab sib tham txog nws cov yam ntxwv tseem ceeb thiab muaj feem cuam tshuam.
Basic Properties ntawm Acetone
Acetone, nrog rau cov tshuaj formula C₃H₆O thiab molecular hnyav ntawm 58.08 g / mol, yog ib tug colourless, volatile kua nrog ib tug qab zib saj thiab irritating tsw. Vim nws cov kuab tshuaj zoo heev, acetone tau siv dav hauv cov tshuaj detergents, kuab tshuaj, coatings, tshuaj thiab plastics industries. Hauv cov ntawv thov no, kev paub txog lub cev lub cev ntawm acetone, xws li cov ntsiab lus kub, yog qhov tseem ceeb los tswj cov txheej txheem tsis ua haujlwm.
Dab tsi yog qhov kub ntawm acetone?
Qhov kub ntawm acetone feem ntau yog sau tseg li 56 ° C (kwv yees li 329 K) ntawm tus qauv atmospheric siab (101.3 kPa). Qhov ntsuas kub no yog qhov ntsuas kub uas acetone hloov ntawm cov kua mus rau lub xeev gaseous. Qhov qis qis ntawm acetone piv rau lwm cov kuab tshuaj organic txhais tau hais tias nws muaj qhov kub thiab txias hauv chav tsev. Cov cuab yeej no tso cai rau acetone evaporate sai sai hauv ntau daim ntawv thov kev lag luam, ua kom yooj yim ziab thiab ntxuav cov txheej txheem.
Cov xwm txheej cuam tshuam rau qhov kub siab ntawm acetone
Qhov kub ntawm acetone tsis zoo li qub thiab cuam tshuam los ntawm ntau yam. Qhov tseem ceeb tshaj plaws muaj xws li sab nraud siab, impurity cov ntsiab lus thiab qhov feem ntawm cov kuab tshuaj sib tov.

Cov nyhuv ntawm sab nraud siab: Thaum qis qis, qhov kub ntawm acetone txo qis. Thaum lub tshuab nqus tsev distillation, txo qis lub siab tso cai rau acetone kom boil ntawm qhov kub thiab txias, yog li txo qhov kub thiab txias. Yog li ntawd, kev tswj lub siab yog ib txoj hauv kev zoo ntawm kev tswj qhov kub ntawm acetone thaum lub sij hawm kev lag luam distillation.

Cov nyhuv ntawm impurities: lub xub ntiag ntawm impurities nyob rau hauv acetone kuj cuam tshuam nws cov boiling point. Qhov siab dua qhov purity, qhov ze ntawm qhov boiling point yog rau tus qauv tus nqi; thaum sib tov uas muaj lwm yam volatile Cheebtsam yuav ua rau ib tug hloov nyob rau hauv lub boiling point. Rau kev tsim cov tshuaj zoo, nws yog ib qho tseem ceeb los tswj cov purity ntawm acetone kom nws ruaj khov ntawm qhov kub thiab txias.

Cov nyhuv ntawm cov kuab tshuaj sib tov: Thaum acetone sib xyaw nrog lwm cov kuab tshuaj, nws cov ntsiab lus kub yuav hloov. Qhov tshwm sim no hu ua azeotropy. Hauv kev xyaum, qhov taw tes azeotropic ntawm acetone nrog lwm cov kuab tshuaj yuav tsum tau saib xyuas tshwj xeeb vim nws tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov txheej txheem sib cais.

Qhov tseem ceeb ntawm Acetone Boiling Point
Kev nkag siab thiab tswj qhov kub ntawm acetone yog qhov tsim nyog rau kev tsim khoom lag luam. Hauv ntau cov txheej txheem tshuaj, xws li cov kuab tshuaj rov qab, distillation sib cais thiab kev tswj cov tshuaj tiv thaiv, kev paub tseeb ntawm qhov kub ntawm acetone tuaj yeem pab txhim kho cov txheej txheem tsis zoo, txhim kho kev tsim khoom thiab ua kom cov khoom zoo.
Qhov kub ntawm acetone yog qhov tseem ceeb ntawm lub cev tsis muaj zog hauv kev lag luam tshuaj. Txawm hais tias siv cov kuab tshuaj, tshuaj tiv thaiv lossis kev sib cais distillation, nkag siab txog qhov kub thiab txias ntawm acetone thiab ntau yam cuam tshuam rau nws yog lub hauv paus tseem ceeb rau kev ua kom cov txheej txheem du.