Qhov Tseem Ceeb Qhov txawv - Ethylene Glycol vs Diethylene Glycol
Qhov sib txawv tseem ceeb ntawm ethylene glycol thiab diethylene glycol yog tias ethylene glycol molecule yog ib tus neeg molecule whereas diethylene glycol molecule yog tsim los ntawm kev sib xyaw ntawm ob ethylene glycol molecules ntawm ib daim ntawv cog lus ether.
Ethylene glycol thiab diethylene glycol yog cov organic tebchaw uas muaj kev siv hauv kev tsim cov coolants rau xyaw. Lawv muaj cov qauv zoo sib xws; Diethylene glycol yog kev sib xyaw ua ke ntawm ethylene glycol molecules.
YEthylene Glycol yog dab tsi?
Ethylene glycol yog cawv muaj cov tshuaj formulaC2H6O2Lub npe IUPAC ntawm cov tshuaj no yog ethane-1, 2-diol. Nyob rau hauv chav tsev kub thiab siab, nws yog ib tug tsis muaj kob, tsis muaj ntxhiab kua uas qab zib tasting thiab viscous. Cov kua no yog tshuaj lom neeg tsawg. Cov molar loj ntawm ethylene glycol yog 62 g / mol. Lub melting point ntawm cov kua no yog -12.9 ° C thiab lub boiling point yog 197.3 ° C. Ethylene glycol yog miscible nrog dej vim nws muaj -OH pawg uas muaj peev xwm tsim hydrogen bonds.
Daim duab 01: Cov Qauv Tshuaj ntawm Ethylene Glycol
Muaj ob txoj hauv kev tsim cov ethylene glycol; industrial scale ntau lawm thiab lom txoj kev rau ethylene glycol ntau lawm. Hauv kev tsim khoom lag luam, ethylene glycol yog tsim los ntawm ethylene. Ethylene hloov mus rau hauv ethylene oxide uas yog tom qab ntawd hloov mus rau hauv ethylene glycol los ntawm cov tshuaj tiv thaiv ntawm ethylene oxide thiab dej. Cov tshuaj tiv thaiv no yog catalyzed los ntawm acids lossis bases. Yog tias cov tshuaj tiv thaiv ua tiav hauv qhov nruab nrab uas muaj pH nruab nrab, ces cov tshuaj tiv thaiv sib xyaw yuav tsum tau muab nrog lub zog kub. Txoj kev lom neeg ntawm kev tsim cov ethylene glycol yog los ntawm kev degradation ntawm polyethylene los ntawm plab kab mob ntawm Kab ntsig ntawm Greater wax moth.
Diethylene Glycol yog dab tsi?
Diethylene glycol yog cov organic compound uas muaj cov tshuaj formula C4H10O3 Nyob rau hauv chav tsev kub, nws yog cov kua uas tsis muaj xim thiab muaj ntxhiab tsw. Txawm li cas los xij, nws yog hygroscopic thiab lom. Nws muaj qab zib. Diethylene glycol yog miscible nrog dej thiab cawv vim nws muaj peev xwm tsim cov hydrogen bonds. Cov molar mass ntawm no compound yog 106.12 g / mol. Lub melting point ntawm diethylene glycol yog -10.45 ° C thiab boiling point yog 245 ° C.
Daim duab 02: Cov qauv tshuaj ntawm Diethylene Glycol
Txoj hauv kev tshaj plaws ntawm kev tsim cov diethylene glycol yog los ntawm ib nrab hydrolysis ntawm ethylene oxide. ethylene hloov mus rau hauv ethylene oxide; Yog li, ethylene oxide yog qhov nruab nrab. Cov tshuaj tiv thaiv ib nrab hydrolysis muab diethylene glycol los ntawm kev sib xyaw ntawm ob ethylene glycol molecules ntawm ib daim ntawv cog lus ether.
Dab tsi zoo sib xws ntawm Ethylene Glycol thiab Diethylene Glycol?
- Ob leeg Ethylene Glycol thiab Diethylene Glycol yog cov tshuaj cawv.
- Ob leeg muaj peev xwm tsim cov ntawv cog lus hydrogen.
- Ob leeg yog cov kua tsis muaj xim ntawm chav tsev kub.
Qhov txawv ntawm Ethylene Glycol thiab Diethylene Glycol yog dab tsi?
YEthylene Glycol vs Diethylene Glycol |
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| Ethylene glycol yog cawv muaj cov tshuaj formula C2H6O2. | Diethylene glycol yog cov organic compound uas muaj cov tshuaj formula C4H10O3. |
| Molar Mass | |
| Cov molar loj ntawm ethylene glycol yog 62 g / mol. | Cov molar loj ntawm diethylene glycol yog 106.12 g / mol. |
| Molecular Structure | |
| Ethylene glycol yog ib tus neeg molecule tau los ntawm ethylene oxide. | Diethylene glycol yog kev sib xyaw ntawm ob lub ethylene glycol molecules ntawm ether daim ntawv cog lus. |
| Ether Bond | |
| Tsis muaj ether daim ntawv cog lus hauv ethylene glycol. | Ether daim ntawv cog lus txuas ob lub ethylene glycol molecules. |
| Melting Point thiab Boiling PointDiethylene | |
| Lub ntsiab lus melting ntawm ethylene glycol yog -12.9 ° C thiab kub taw tes yog 197.3 ° C. | Lub ntsiab lus melting ntawm diethylene glycol yog -10.45 ° C thiab boiling point yog 245 ° C. |
| ntau lawm | |
| Ua ntej, ethylene hloov mus rau hauv ethylene oxide, uas tig mus rau hauv ethylene glycol los ntawm reacting nrog dej. | Diethylene glycol yog tsim los ntawm ib nrab hydrolysis ntawm ethylene oxide. |
Summary – Ethylene Glycol vs Diethylene Glycol
Ob leeg ethylene glycol thiab diethylene glycol yog tsim los ntawm tib yam khoom pib; ethylene. Qhov txawv ntawm ethylene glycol thiab diethylene glycol yog tias ib qho ethylene glycol molecule yog ib tug neeg molecule whereas diethylene glycol molecule yog tsim los ntawm kev sib xyaw ntawm ob ethylene glycol molecules ntawm ib tug ether daim ntawv cog lus.
