Boiling taw tes ntawm toluene: ib qho kev pom rau hauv cov tshuaj uas nquag siv
Toluene, raws li cov organic dav organic hauv kev lag luam, ua lub luag haujlwm tseem ceeb hauv ntau cov teb nrog nws cov khoom ntiag tug. Qhov cub sov ntawm toluene yog qhov tseem ceeb uas yuav tsum tau saib tshwj xeeb hauv kev lag luam kev lag luam thiab kev siv. Nkag siab txog qhov tod
Txheej txheem cej luam ntawm cov khoom tseem ceeb thiab boiling point ntawm toluene
Toluene yog cov kua tsis muaj kob, cov kua uas tsw ntxhiab tsw nrog cov tshuaj noj cov mis nyuj c₇h₈. Nws yog dav pom nyob rau hauv cov xim tha xim, pleev xim, ua nyias nyias thiab cov nplaum thiab tseem siv tau los ua cov kuab tshuaj muaj zog. Ntawm atighpheric siab, lub boiling point ntawm toluene yog 110.6 ° C. Qhov no feem ntau tsis muaj boil point tso cai rau yaj yooj yim ntawm chav sov, yog li tshwj xeeb mloog tau yooj yim rau nws cov kev phom sij thiab muaj peev xwm vapor txaus ntshai thaum lub sijhawm ua haujlwm.
Yam cuam tshuam rau txoj kev npau npau ntawm toluene
Txawm hais tias qhov cub boiling ntawm toluene yog 110.6 ° C ntawm atmospheric siab, kis no yuav cuam tshuam los ntawm ntau yam hauv kev siv. Piv txwv li, kev hloov pauv hauv siab tuaj yeem cuam tshuam ncaj qha rau txoj kev npau npau ntawm toluene. Raws li cov roj av txoj cai lij choj, qhov npau taws ntawm cov kua nce thaum lub siab nce; Conversely, nws ntog thaum lub siab txo qis. Qhov kev tshwm sim no tau siv dav nyob rau hauv muaj distillation thiab ib daim ntawv qhia txog cov txheej txheem los txhim kho kev siv hluav taws xob thiab tawm los hauv kev sib cais.
Purity kuj tseem yog ib qho ntawm qhov tseem ceeb cuam tshuam rau kev npau taws ntawm toluene. Hauv kev lag luam ntau lawm, feem ntau muaj lwm cov impurities, muaj cov uas yuav ua rau muaj kev hloov me ntsis hauv toluene. Yog li ntawd, nkag siab thiab tswj lub purity ntawm toluene yog qhov tseem ceeb kom raug muab nws lub boiling point.
Toluene boiling taw qhia hauv kev lag luam
Hauv kev tsim cov tshuaj lom neeg, qhov cub kub ntawm toluene feem ntau siv los txiav txim siab qhov kub thiab cov hws khov, uas yog qhov tshwj xeeb rau cov txheej txheem sib cais xws li dog cais thiab rectification. Piv txwv li, hauv kev lag luam petrochemical, toluene feem ntau siv los ua cov pub rau kev tsim cov tshuaj tseem ceeb xws li benzene, methanol thiab xyooj. Los ntawm kev tswj qhov kub ntawm cov reactor yog li ntawd toluene evaporates thiab condenses nyob rau hauv qhov tsim nyog kub, kev xaiv thiab tawm los ntawm cov tshuaj tiv thaiv tuaj yeem txhim kho.
Kev paub txog qhov sov ntawm Toluene kuj tseem ceeb rau nws cov khoom lag luam kom zoo thiab thauj khoom. Vim tias Toluene yog volatile thiab cov nplaim taws, nws yuav tsum tau khaws cia rau hauv ib puag ncig tsawg-thaum lub sij hawm, thiab lwm cov khoom siv tsis zoo yuav tsum zam kev tiv thaiv kom tsis txhob tawg lossis muaj kev sib tsoo.
Lub ntsiab
Toluene raws li ib qho tseem ceeb rau cov khoom siv raw, qhov npau npau ntawm Toluene yog qhov tseem ceeb ntsuas hauv nws cov ntawv thov kev lag luam. Los ntawm kev nkag mus tob tob txog ntawm qhov cub npau npau thiab nws cov kev coj ua tau zoo tuaj yeem txhim kho kev ua haujlwm zoo thiab kev nyab xeeb.