Boiling point ntawm n-Butanol: cov ntsiab lus thiab cov yam ntxwv cuam tshuam
n-Butanol, tseem hu ua 1-butanol, yog ib hom organic compound dav siv nyob rau hauv cov tshuaj, xim thiab tshuaj industries. Lub ntsiab lus kub yog qhov tseem ceeb heev rau lub cev lub cev ntawm n-Butanol, uas tsis tsuas yog cuam tshuam rau kev khaws cia thiab siv n-Butanol, tab sis kuj yog nws daim ntawv thov ua hnyav lossis nruab nrab hauv cov txheej txheem tshuaj. Nyob rau hauv daim ntawv no, peb yuav tham txog nyob rau hauv kom meej tus nqi ntawm n-butanol boiling point thiab lub influencing yam hauv qab nws.
Cov ntaub ntawv tseem ceeb ntawm qhov kub ntawm n-butanol
Qhov kub ntawm n-butanol yog 117.7 ° C ntawm atmospheric siab. Qhov ntsuas kub no qhia tias n-butanol yuav hloov ntawm cov kua mus rau lub xeev gaseous thaum rhuab mus rau qhov kub no. n-Butanol yog cov kuab tshuaj organic nrog rau qhov kub nruab nrab, uas siab dua li cov cawv me me xws li methanol thiab ethanol, tab sis qis dua li cov cawv uas muaj cov roj carbon ntev ntev xws li pentanol. Tus nqi no yog qhov tseem ceeb heev hauv kev ua haujlwm hauv kev lag luam, tshwj xeeb tshaj yog thaum nws los txog rau cov txheej txheem xws li distillation, sib cais thiab hnyav rov qab, qhov tseeb tus nqi ntawm qhov boiling point txiav txim siab siv zog thiab kev xaiv cov txheej txheem.
Cov yam ntxwv cuam tshuam rau qhov kub ntawm n-butanol
Molecular qauv
Qhov kub ntawm n-butanol yog ze ze rau nws cov qauv molecular. n-Butanol yog ib hom kab saturated cawv nrog cov mis molecular C₄H₉OH. n-Butanol muaj qhov kub hnyiab ntau dua vim tias muaj zog intermolecular rog (xws li, van der Waals rog thiab hydrogen bonding) ntawm linear molecules piv rau branched los yog cyclic lug. Lub xub ntiag ntawm ib pawg hydroxyl (-OH) nyob rau hauv n-butanol molecule, ib tug polar functional pab pawg neeg uas muaj peev xwm tsim hydrogen bonds nrog rau lwm yam molecules, ntxiv nce nws boiling point.

Atmospheric Pressure Hloov
Qhov kub ntawm n-butanol kuj tseem cuam tshuam los ntawm atmospheric siab. N-butanol boiling point ntawm 117.7 ° C yog hais txog lub boiling point ntawm tus qauv atmospheric siab (101.3 kPa). Nyob rau hauv qis atmospheric siab tej yam kev mob, xws li nyob rau hauv lub tshuab nqus tsev distillation ib puag ncig, lub boiling point ntawm n-butanol yuav txo. Piv txwv li, nyob rau hauv ib puag ncig ib puag ncig nws tuaj yeem ua rau kub kub hauv qab 100 ° C. Yog li ntawd, cov txheej txheem distillation thiab kev sib cais ntawm n-butanol tuaj yeem tswj tau zoo los ntawm kev kho lub ambient siab hauv kev tsim khoom.

Purity thiab co-existing tshuaj
Lub boiling point ntawm n-butanol kuj yuav cuam tshuam los ntawm purity. High purity n-butanol muaj qhov kub siab ntawm 117.7 ° C. Txawm li cas los xij, yog tias muaj impurities nyob rau hauv n-butanol, cov no tuaj yeem hloov qhov kub ntawm n-butanol los ntawm cov teebmeem azeotropic lossis lwm yam kev cuam tshuam ntawm lub cev. Piv txwv li, thaum n-butanol yog tov nrog dej los yog lwm yam organic solvents, qhov tshwm sim ntawm azeotropy yuav ua rau lub boiling point ntawm cov sib tov kom qis dua cov ntshiab n-butanol. Yog li ntawd, kev paub txog qhov muaj pes tsawg leeg thiab qhov xwm txheej ntawm qhov sib tov yog qhov tseem ceeb rau kev tswj kom raug boiling point.

Kev siv n-butanol boiling point hauv kev lag luam
Hauv kev lag luam tshuaj, kev nkag siab thiab kev tswj ntawm qhov kub ntawm n-butanol yog qhov tseem ceeb rau kev siv. Piv txwv li, hauv kev tsim cov txheej txheem uas n-butanol yuav tsum tau sib cais los ntawm lwm yam khoom siv los ntawm distillation, qhov kub thiab txias yuav tsum tau tswj kom meej meej kom muaj kev sib cais zoo. Nyob rau hauv cov kuab tshuaj rov qab systems, lub boiling point ntawm n-butanol kuj txiav txim qhov tsim ntawm cov khoom siv rov qab thiab cov efficiency ntawm kev siv lub zog. Qhov nruab nrab ntawm qhov kub ntawm n-butanol tau ua rau nws siv hauv ntau cov kuab tshuaj thiab tshuaj lom neeg.
Nkag siab txog qhov kub ntawm n-butanol yog qhov tseem ceeb rau kev siv tshuaj lom neeg. Kev paub txog cov ntsiab lus kub ntawm n-butanol muab lub hauv paus ruaj khov rau cov txheej txheem tsim thiab kev txhim kho kev tsim khoom, ob qho tib si hauv kev tshawb fawb hauv chav kuaj thiab hauv kev tsim khoom.