Ethylene Glycol: Mushonga wemakemikari ane zvinangwa zvakawanda uye unodzivirira kuoma kwechando
Minda mikuru yekushandisa
Muindasitiri yemotokari, ethylene glycol chinhu chikuru chinodzivirira kutonhora kwemvura. Inoderedza kutonhora kwemvura, ichidzivirira kutonhora kwemvura pakupisa kwakaderera, uye inokwidza kufashaira kwemvura, ichidzivirira kupisa kweinjini. Ethylene glycol-based antifreeze inoshandiswa zvakanyanya mumitambo yekutonhodza yemotokari, marori, uye michina yeindasitiri kuona kuti injini inoshanda zvakanaka kana tembiricha yanyanya. Pamusoro pezvo, ethylene glycol ine kugadzikana kwakanaka kwekupisa uye hunhu hwekudzivirira ngura, izvo zvinogona kuwedzera hupenyu hwemitambo yekutonhodza.
Muindasitiri yemakemikari, ethylene glycol chinhu chakakosha pakugadzira organic synthesis. Inoshandiswa kugadzira polyethylene terephthalate (PET), chinhu chikuru che polyester fibers, resins, uye mabhodhoro epurasitiki. Ethylene glycol inogonawo kushandiswa kugadzira organic compounds dzakasiyana-siyana, dzakadai se ethylene glycol ethers, esters, uye amines, izvo zvinoshandiswa zvakanyanya mu solvents, coatings, inks, uye electronic chemicals.
Muindasitiri yemishonga, ethylene glycol inoshandiswa sechinhu chinonyungudutsa uye chinosanganisa mishonga. Inogona kunyungudutsa zvimwe zvikamu zvemishonga, zvichivandudza kugadzikana uye kunyungudika kwemishonga. Pamusoro pezvo, ethylene glycol inogona kushandiswa kugadzira zvimwe zvinhu zvemishonga, zvakaita seethylene glycol ethers nemaesters, zvine basa rakakosha mukugadzirwa kwemishonga.
Muindasitiri yemachira, ethylene glycol inoshandiswa kugadzira machira epolyester. Machira epolyester anozivikanwa nekusimba kwawo kwakanyanya, kuramba kupfeka, uye kuchengetedza chimiro chakanaka, uye anoshandiswa zvakanyanya muzvipfeko, machira epamba, uye machira emaindasitiri. Ethylene glycol inoita basa guru mukugadzirwa kwemachira epolyester nekuita pamwe chete neterephthalic acid kugadzira polyethylene terephthalate (PET), zvichikonzera machira epolyester emhando yepamusoro.
Muindasitiri yezvemagetsi, ethylene glycol inoshandiswa semushonga unonyungudutsa uye unotonhodza. Inogona kushandiswa kuchenesa zvikamu zvemagetsi, kubvisa tsvina pamusoro uye zvasara. Pamusoro pezvo, zvinotonhodza zvakagadzirwa ne ethylene glycol zvinoshandiswa muzvirongwa zvekutonhodza zvemidziyo yemagetsi kuchengetedza tembiricha dzakagadzikana panguva yekushanda kwemutoro wakawanda.
Pasinei nekushandiswa kwayo kwakasiyana-siyana, ethylene glycol ine chepfu, uye kushandiswa kwayo nekuchengetwa kwayo kunoda matanho akasimba ekuchengetedza. Ethylene glycol ine kuravira kunotapira, asi kuinwa kwayo kunogona kukonzera chepfu yakanyanya, saka inofanira kuchengetwa zvakanaka kudzivirira kupinda kwevana nemhuka. Mukugadzirwa kwemaindasitiri, kushandiswa kwe ethylene glycol kunowanzoitika mumasisitimu akavharwa kuderedza kukanganisa kwezvakatipoteredza.
Magadzirirwo
| Zita rechigadzirwa | Ethylene Glycol | |||||||||
| Fomura yeMakemikari | C2H6O2 | |||||||||
| Kurema kweMorekuru | 62.07 g/mol | |||||||||
| Chitarisiko | Mvura ine viscous isina ruvara | |||||||||
| Nzvimbo Yokunyunguduka | -13.2℃ | |||||||||
| Nzvimbo Yokubikira | 197.3℃ | |||||||||
| Kuwanda kwevanhu | 1.1132 g/cm³ | |||||||||
| Nhamba yeCAS | 107 - 21 - 1 | |||||||||
| Kodhi yeHS | 29053100 | |||||||||
| EINECS Kwete | 203 - 473 - 3 | |||||||||
| Kushandiswa | Inoshandiswa pakugadzira polyester, kugadzira antifreeze, solvent, uye kugadzira plasticizer | |||||||||
Pepa Rekudzora Hunhu
| Zita rechigadzirwa | Ethylene Glycol | ||||||
| CHINHU | Kukosha Kwakajairika (%) | Kukosha kwekuyedza (%) | |||||
| Kuchena,% ≥ | 99.8 | 99.9 | |||||
| Chromaticity (Pt-Co), ≤ | 5 | 5 | |||||
| Kuwanda, g/cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Nzvimbo yakaoma,℃ ≤ | 199 | 197.4 | |||||
| Hunyoro,% ≤ | 0.1 | 0.05 | |||||
| Asidi (se acetic acid),% ≤ | 0.001 | 0.0007 | |||||
| Simbi (Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Zvakasara zveKubuda Kwemvura,% ≤ | 0.001 | 0.0003 | |||||
| Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Muchidimbu
Muchidimbu, ethylene glycol, sechigadzirwa chakakosha chemakemikari eorganic, inoita basa guru mumaindasitiri akasiyana-siyana. Haingobatsiri chete pakushanda uye kunaka kwechigadzirwa asiwo inotsigira kukura kwemaindasitiri emazuva ano. Nekufambira mberi kwetekinoroji, mikana yekushandisa ethylene glycol ichave yakakura.