Ethylene Glycol: Ib qho tshuaj lom neeg siv ntau yam thiab tshuaj tua kab mob
Cov Ntawv Thov Tseem Ceeb
Hauv kev lag luam tsheb, ethylene glycol yog ib qho tseem ceeb ntawm cov tshuaj tiv thaiv kev khov. Nws txo qhov khov ntawm dej, tiv thaiv cov dej txias kom tsis txhob khov ntawm qhov kub qis, thiab nce qhov kub npau, tiv thaiv lub cav kom tsis txhob kub dhau. Ethylene glycol-based antifreeze yog siv dav hauv cov tshuab txias ntawm lub tsheb, tsheb thauj khoom, thiab cov khoom siv hauv kev lag luam kom ntseeg tau tias lub cav ua haujlwm ib txwm nyob rau hauv qhov kub thiab txias heev. Tsis tas li ntawd, ethylene glycol muaj kev ruaj khov zoo thiab tiv thaiv kev xeb, uas tuaj yeem ua rau lub neej ua haujlwm ntawm cov tshuab txias ntev dua.
Hauv kev lag luam tshuaj lom neeg, ethylene glycol yog ib qho khoom siv tseem ceeb rau kev tsim cov organic. Nws yog siv los tsim cov polyethylene terephthalate (PET), cov khoom siv tseem ceeb rau cov polyester fibers, resins, thiab lub raj mis yas. Ethylene glycol kuj tseem siv tau los tsim ntau yam organic compounds, xws li ethylene glycol ethers, esters, thiab amines, uas yog siv dav hauv cov kuab tshuaj, coatings, inks, thiab cov tshuaj hluav taws xob.
Hauv kev lag luam tshuaj, ethylene glycol siv ua cov kuab tshuaj thiab cov khoom nruab nrab. Nws tuaj yeem yaj qee cov khoom xyaw tshuaj, txhim kho kev ruaj khov thiab kev yaj ntawm cov tshuaj. Tsis tas li ntawd, ethylene glycol tuaj yeem siv los ua cov tshuaj nruab nrab, xws li ethylene glycol ethers thiab esters, uas muaj cov ntawv thov tseem ceeb hauv kev tsim tshuaj.
Hauv kev lag luam textile, ethylene glycol yog siv los tsim cov polyester fibers. Polyester fibers paub txog lawv lub zog siab, tsis yooj yim hnav, thiab khaws cia zoo, thiab siv dav hauv khaub ncaws, textiles hauv tsev, thiab cov ntaub industrial. Ethylene glycol ua lub luag haujlwm tseem ceeb hauv kev tsim cov polyester fibers los ntawm kev cuam tshuam nrog terephthalic acid los tsim polyethylene terephthalate (PET), ua rau cov polyester fibers zoo.
Hauv kev lag luam hluav taws xob, ethylene glycol siv ua cov kuab tshuaj thiab cov dej txias. Nws tuaj yeem siv los ntxuav cov khoom siv hluav taws xob, tshem tawm cov khoom tsis huv thiab cov seem ntawm qhov chaw. Tsis tas li ntawd, cov dej txias uas muaj ethylene glycol siv rau hauv cov tshuab txias ntawm cov khoom siv hluav taws xob kom tswj tau qhov kub thiab txias thaum lub sijhawm ua haujlwm hnyav.
Txawm hais tias nws siv tau ntau yam los xij, ethylene glycol muaj tshuaj lom, thiab nws txoj kev siv thiab kev khaws cia yuav tsum tau ceev faj txog kev nyab xeeb. Ethylene glycol muaj saj qab zib, tab sis kev noj tuaj yeem ua rau muaj kev lom loj heev, yog li nws yuav tsum tau khaws cia kom zoo kom tiv thaiv cov menyuam yaus thiab tsiaj txhu nkag mus. Hauv kev tsim khoom lag luam, kev siv ethylene glycol feem ntau tshwm sim hauv cov kab ke kaw kom txo qis kev cuam tshuam rau ib puag ncig.
Cov Lus Qhia Tshwj Xeeb
| Lub Npe Khoom | Ethylene Glycol | |||||||||
| Cov Qauv Tshuaj | C2H6O2 | |||||||||
| Qhov Hnyav Molecular | 62.07 g/mol | |||||||||
| Qhov tsos | Cov kua nplaum tsis muaj xim | |||||||||
| Qhov Kub Yaj | -13.2℃ | |||||||||
| Kub Kub | 197.3 ℃ | |||||||||
| Qhov Ceev | 1.1132 g/cm³ | |||||||||
| CAS TSIS MUAJ | 107 - 21 - 1 | |||||||||
| Tus lej HS | 29053100 | |||||||||
| EINECS TSIS MUAJ | 203 - 473 - 3 | |||||||||
| Daim Ntawv Thov | Siv rau kev tsim cov polyester, cov tshuaj tiv thaiv kev khov, cov kuab tshuaj, thiab cov khoom siv yas | |||||||||
Daim Ntawv Tswj Xyuas Zoo
| Lub Npe Khoom | Ethylene Glycol | ||||||
| YAM KHOOM | TUS NQI TXUJ CI (%) | TUS NQI XEEM (%) | |||||
| Kev huv,% ≥ | 99.8 | 99.9 | |||||
| Chromaticity (Pt-Co), ≤ | 5 | 5 | |||||
| Qhov ceev, g / cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Qhuav Point, ℃ ≤ | 199 | 197.4 | |||||
| Nqus dej,% ≤ | 0.1 | 0.05 | |||||
| Acidity (raws li acetic acid),% ≤ | 0.001 | 0.0007 | |||||
| Hlau (Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Cov Khoom seem ntawm cov dej noo,% ≤ | 0.001 | 0.0003 | |||||
| Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Hauv kev xaus lus
Hauv kev xaus lus, ethylene glycol, ua ib yam khoom siv organic tseem ceeb, ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam. Nws tsis yog tsuas yog txhim kho kev ua tau zoo thiab zoo ntawm cov khoom xwb tab sis kuj txhawb nqa kev txhim kho ntawm kev lag luam niaj hnub no. Nrog rau kev nce qib ntawm thev naus laus zis tas mus li, kev siv ethylene glycol yuav dav dua.