Nyob deb ntawm qhov tseem ceeb tshaj plaws ntawm kev siv diol yog nyob rau hauv kev tsim cov polyesters , tshwj xeeb tshaj yog PET (polyehylene terephthalate), siv dav rau khaub ncaws thiab ntim. Tseeb tiag 45% ntawm polyester yog siv rau lub raj mis 1.
Qhov twg hauv qab no yog piv txwv ntawm diols?
Cov khoom lag luam feem ntau yog ethylene glycol. Piv txwv ntawm diols uas cov pab pawg hydroxyl ua haujlwm tau sib cais ntau dua suav nrog 1, 4-butanediol HO-(CH2) 4-OH thiab propylene-1, 3-diol, lossis beta propylene glycol, HO-CH2− CH2-CH2-OH.
Yog diols Colourless?
Synthesis of diols
Siv alkaline potassium manganate (VII) ua rau cov xim hloov ntawm cov ntshav ntshiab mus rau ntsuab ntsuab; acidic potassium manganate (VII) hloov ntshiab tsis muaj xim.
Vim li cas yog vicinal diols?
Ib glycol, tseem hu ua vicinal diol, yog a compound nrog ob pawg -OH ntawm cov pa roj carbon uas nyob ib sab.
Dab tsi yog syn diols?
About Transcript. Cov tshuaj tiv thaiv uas ntxiv ob hydroxyl rau tib lub ntsej muag ntawm alkene ob daim ntawv cog lusraws li nws tau hloov mus rau ib daim ntawv cog lus.
