Boiling point ntawm Ethylene Glycol thiab nws cov cuab yeej tshuaj ntsuam xyuas
Hauv kev lag luam chemical, ethylene glycol (Ethylene Glycol) yog ib qho tseem ceeb ntawm cov khoom siv tshuaj lom neeg uas tau siv dav hauv ntau qhov chaw xws li tshuaj tua kab mob thiab cov resin ntau lawm. Nkag siab txog cov khoom siv hluav taws xob ntawm Ethylene Glycol, tshwj xeeb tshaj yog nws cov ntsiab lus kub, yog qhov tseem ceeb rau nws daim ntawv thov hauv kev lag luam. Hauv tsab xov xwm no, lub ntsiab lus kub ntawm ethylene glycol thiab nws cov cuam tshuam cuam tshuam yuav raug tham kom ntxaws.
Basic Properties ntawm Ethylene Glycol thiab nws Boiling Point
Ethylene glycol yog xim tsis muaj xim, tsis muaj ntxhiab, tsw qab ntxiag ua kua nrog cov tshuaj formula C₂H₆O₂. Raws li ib tug diol, ethylene glycol muaj zog hygroscopicity thiab zoo solubility zog. Qhov kub ntawm ethylene glycol yog 197.3 ° C. Tus nqi no, ntsuas ntawm atmospheric siab, qhia txog kev ruaj ntseg ntawm nws cov qauv molecular thiab lub zog ntawm nws cov intermolecular hydrogen bonds.
Cov yam ntxwv cuam tshuam rau qhov kub kub thiab nws qhov tseem ceeb ntawm kev lag luam
Lub boiling point ntawm ethylene glycol yog cuam tshuam los ntawm ntau yam. Hydrogen bonding nyob rau hauv cov qauv molecular muaj qhov cuam tshuam tseem ceeb ntawm qhov kub kub. Cov ethylene glycol molecule muaj ob pawg hydroxyl (-OH), uas txuas nrog hydrogen bonds, ua rau lub zog ntawm cov ethylene glycol muaj zog thiab ua rau muaj qhov kub siab heev. Qhov hnyav molecular ntawm ethylene glycol kuj cuam tshuam rau nws qhov kub thiab txias, nrog rau qhov hnyav dua molecular xav tau ntau lub zog rau evaporation.
Hauv cov ntawv thov kev lag luam, qhov kub ntawm ethylene glycol muaj qhov cuam tshuam loj rau nws qhov kev ua tau zoo raws li cov kuab tshuaj, cov khoom ua kom txias thiab lwm yam khoom. Piv txwv li, qhov kub siab dua ua rau glycol ruaj khov thiab tsis tshua muaj suab nrov ntawm qhov kub thiab txias, yog li ua kom nws cov txiaj ntsig zoo hauv cov dej txias thiab tshuaj tiv thaiv.
Kev ceev faj hauv kev siv tswv yim
Thaum siv ethylene glycol, kev saib xyuas yuav tsum tau them rau kev sib cuam tshuam ntawm nws cov ntsiab lus kub nrog lwm cov tshuaj. Piv txwv li, hauv cov khoom sib xyaw lossis cov kev daws teeb meem sib xyaw, lwm cov tshuaj yuav cuam tshuam rau qhov kub ntawm ethylene glycol thiab yog li cov khoom kawg ntawm cov khoom. Kev paub txog cov ntsiab lus kub ntawm ethylene glycol tuaj yeem pab txhim kho cov txheej txheem tsim khoom, xws li kev tswj qhov kub thiab txias thaum lub sijhawm distillation thiab concentration.
Hauv cov ntsiab lus, kev nkag siab ntawm qhov kub ntawm ethylene glycol yog qhov tseem ceeb rau nws daim ntawv thov kev lag luam. Los ntawm kev nkag siab txog cov cuab yeej ntawm lub cev ntawm ethylene glycol, nws qhov kev ua tau zoo hauv kev tsim khoom thiab daim ntawv thov tuaj yeem tswj tau zoo dua los txhim kho qhov zoo thiab ruaj khov ntawm cov khoom.