Ethylene Glycol: Mankhwala Ogwira Ntchito Zambiri komanso Oletsa Kuzizira
Minda Yaikulu Yogwiritsira Ntchito
Mu makampani opanga magalimoto, ethylene glycol ndi gawo lalikulu la antifreeze. Imachepetsa nthawi yozizira ya madzi, kuletsa coolant kuzizira pa kutentha kochepa, ndikukweza nthawi yowira, kuletsa kuzizira kwambiri kwa injini. Antifreeze yochokera ku ethylene glycol imagwiritsidwa ntchito kwambiri mu makina ozizira a magalimoto, magalimoto akuluakulu, ndi zida zamafakitale kuti injini izigwira ntchito bwino pa kutentha kwambiri. Kuphatikiza apo, ethylene glycol ili ndi kukhazikika kwa kutentha komanso mphamvu zoletsa dzimbiri, zomwe zimatha kukulitsa moyo wa makina ozizira.
Mu makampani opanga mankhwala, ethylene glycol ndi chinthu chofunikira kwambiri popanga zinthu zachilengedwe. Chimagwiritsidwa ntchito popanga polyethylene terephthalate (PET), chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga ulusi wa polyester, resins, ndi mabotolo apulasitiki. Ethylene glycol ingagwiritsidwenso ntchito popanga zinthu zosiyanasiyana zachilengedwe, monga ethylene glycol ethers, esters, ndi amines, zomwe zimagwiritsidwa ntchito kwambiri mu zosungunulira, zokutira, inki, ndi mankhwala apakompyuta.
Mu makampani opanga mankhwala, ethylene glycol imagwiritsidwa ntchito ngati chosungunulira komanso chosinthira. Imatha kusungunula zigawo zina za mankhwala, ndikuwonjezera kukhazikika ndi kusungunuka kwa mankhwala. Kuphatikiza apo, ethylene glycol ingagwiritsidwe ntchito popanga zinthu zina zapakati za mankhwala, monga ethylene glycol ethers ndi esters, zomwe zimagwiritsidwa ntchito kwambiri popanga mankhwala.
Mu makampani opanga nsalu, ethylene glycol imagwiritsidwa ntchito popanga ulusi wa polyester. Ulusi wa polyester umadziwika kuti ndi wamphamvu kwambiri, wosasunthika, komanso wosunga mawonekedwe abwino, ndipo umagwiritsidwa ntchito kwambiri mu zovala, nsalu zapakhomo, ndi nsalu zamafakitale. Ethylene glycol imagwira ntchito yofunika kwambiri popanga ulusi wa polyester mwa kuchitapo kanthu ndi terephthalic acid kupanga polyethylene terephthalate (PET), zomwe zimapangitsa kuti ulusi wa polyester ukhale wabwino kwambiri.
Mu makampani opanga zamagetsi, ethylene glycol imagwiritsidwa ntchito ngati chosungunulira ndi choziziritsira. Ingagwiritsidwe ntchito kuyeretsa zigawo zamagetsi, kuchotsa zinyalala ndi zotsalira pamwamba. Kuphatikiza apo, zoziziritsira zochokera ku ethylene glycol zimagwiritsidwa ntchito mu makina ozizira a zida zamagetsi kuti zisunge kutentha kokhazikika panthawi yogwira ntchito kwambiri.
Ngakhale kuti imagwiritsidwa ntchito mosiyanasiyana, ethylene glycol ndi poizoni, ndipo kugwiritsidwa ntchito ndi kusungidwa kwake kumafuna njira zodzitetezera kwambiri. Ethylene glycol ili ndi kukoma kokoma, koma kumeza kungayambitse poizoni wambiri, choncho iyenera kusungidwa bwino kuti ana ndi ziweto asaipeze. Pakupanga mafakitale, kugwiritsa ntchito ethylene glycol nthawi zambiri kumachitika m'malo otsekedwa kuti achepetse kuwonongeka kwa chilengedwe.
Mafotokozedwe
| Dzina la Chinthu | Ethylene Glycol | |||||||||
| Fomula Yamankhwala | C2H6O2 | |||||||||
| Kulemera kwa Maselo | 62.07 g/mol | |||||||||
| Maonekedwe | Madzi okhuthala opanda utoto | |||||||||
| Malo Osungunuka | -13.2℃ | |||||||||
| Malo Owira | 197.3℃ | |||||||||
| Kuchulukana | 1.1132 g/cm³ | |||||||||
| CAS NO | 107 - 21 - 1 | |||||||||
| Khodi ya HS | 29053100 | |||||||||
| EINECS NO | 203 - 473 - 3 | |||||||||
| Kugwiritsa ntchito | Amagwiritsidwa ntchito popanga polyester, antifreeze, solvent, ndi plasticizer. | |||||||||
Pepala Lowongolera Ubwino
| Dzina la Chinthu | Ethylene Glycol | ||||||
| CHINTHU | Mtengo Wamba (%) | MTENGO WA MAYESO (%) | |||||
| Chiyero,% ≥ | 99.8 | 99.9 | |||||
| Chromaticity (Pt-Co), ≤ | 5 | 5 | |||||
| Kuchulukana, g/cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Malo Ouma, ℃ ≤ | 199 | 197.4 | |||||
| Chinyezi,% ≤ | 0.1 | 0.05 | |||||
| Asidi (monga acetic acid),% ≤ | 0.001 | 0.0007 | |||||
| Chitsulo (Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Zotsalira za nthunzi,% ≤ | 0.001 | 0.0003 | |||||
| Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Powombetsa mkota
Mwachidule, ethylene glycol, monga chinthu chofunikira kwambiri chachilengedwe, imagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana. Sikuti imangowonjezera magwiridwe antchito ndi ubwino wa zinthu komanso imathandizira chitukuko cha mafakitale amakono. Ndi kupita patsogolo kwaukadaulo kosalekeza, mwayi wogwiritsa ntchito ethylene glycol udzakhala wokulirapo.