I-Ethylene Glycol: Ikhemikhali esebenza ngeendlela ezinengi ne-Antifreeze
Iindawo ezikulu zokusebenza
Embonini yeenkoloyi, i-ethylene glycol yingcenye ekulu ye-antifreeze. Yehlisa izinga lokuqanda kwamanzi, ivimbele i-coolant bona ingaqanda emazingeni womtjhiso aphasi, begodu ikhuphula izinga lokubila, ivimbele injini bona ingatjhisi khulu. I-antifreeze esekelwe ku-ethylene glycol isetjenziswa khulu eenhlelweni zokupholisa zeenkoloyi, amaloli, kanye nemitjhini yamabubulo ukuqinisekisa bona injini isebenza kuhle ngaphasi kwamazinga womtjhiso aphezulu. Phezu kwalokho, i-ethylene glycol inokuzinza okuhle kokutjhisa nokuvimbela ukugqwala, okungangezelela ipilo yeenhlelo zokupholisa.
Embonini yamakhemikhali, i-ethylene glycol yinto eqakathekileko yokwenza izinto eziphilako. Isetjenziselwa ukukhiqiza i-polyethylene terephthalate (PET), into eqakathekileko yokwenza amafayibha we-polyester, ama-resin, namabhodlela weplastiki. I-Ethylene glycol ingasetjenziselwa nokwenza amakhompawundi ahlukahlukeneko we-organic, afana ne-ethylene glycol ethers, esters, kanye nama-amines, asetjenziswa khulu eenhlanganiseni, ema-coatings, ema-inki, kanye namakhemikhali we-elekthronikhi.
Ebubulweni lemithi, i-ethylene glycol isetjenziswa njenge-solvent nephakathi. Ingancibilikisa ezinye iingcenye zemithi, yenza ngcono ukuzinza nokuncibilika kwemithi. Phezu kwalokho, i-ethylene glycol ingasetjenziselwa ukwenza ezinye izinto eziphakathi kwemithi, ezifana ne-ethylene glycol ethers nama-esters, ezineensetjenziswa eziqakathekileko ekwenzeni iindakamizwa.
Ebubulweni lezembatho, i-ethylene glycol isetjenziselwa ukukhiqiza imicu ye-polyester. Imicu ye-polyester yaziwa ngokuqina kwayo, ukujamelana nokuguga, nokugcina ubujamo obuhle, begodu isetjenziswa khulu ezembathweni, eentweni zekhaya, kanye nezindwangu zamabubulo. I-Ethylene glycol idlala indima eqakathekileko ekukhiqizeni imicu ye-polyester ngokuthi ihlangane ne-terephthalic acid ukwakha i-polyethylene terephthalate (PET), okuphumela emicu ye-polyester esezingeni eliphezulu.
Ebubulweni le-elekthronikhi, i-ethylene glycol isetjenziswa njenge-solvent ne-coolant. Ingasetjenziselwa ukuhlanza izinto ze-elekthronikhi, ukususa ukusilaphazeka okuphezulu kanye namasalela. Phezu kwalokho, ama-coolant asekelwe ku-ethylene glycol asetjenziswa eenhlelweni zokupholisa zamadivayisi we-elekthronikhi ukugcina amazinga womtjhiso azinzileko ngesikhathi sokusebenza ngomthwalo omkhulu.
Nanyana isetjenziswa ngeendlela ezinengi, i-ethylene glycol inobuthi, begodu ukusetjenziswa kwayo nokubulungwa kwayo kutlhoga iinqabo eziqinileko zokuphepha. I-ethylene glycol inefleyiva emnandi, kodwana ukuyingena kungabangela ubuthi obukhulu, njeke kufanele igcinwe kuhle ukukhandela ukuyifinyelela kwabantwana neenlwana. Ekukhiqizeni kwezebubulo, ukusetjenziswa kwe-ethylene glycol kuvame ukwenzeka eenhlelweni ezivaliweko ukwehlisa umthelela wemvelo.
Iinqophiso
| Ibizo lomkhiqizo | I-Ethylene Glycol | |||||||||
| Ifomula yamakhemikhali | C2H6O2 | |||||||||
| Ubunzima bamamolekhyuli | 62.07 g/mol | |||||||||
| Ukuvela | Uketshezi olunambala olunamathelayo | |||||||||
| Indawo yokuncibilika | -13.2°C | |||||||||
| Indawo yokubila | 197.3°C | |||||||||
| Ukuminyana | 1.1132 g/cm3 | |||||||||
| CAS NO | 107 - 21 - 1 | |||||||||
| Ikhodi ye-HS | 29053100 | |||||||||
| I-EINECS NO | 203 - 473 - 3 | |||||||||
| Isibawo | Isetjenziselwa ukukhiqiza i-polyester, ukwakheka kwe-antifreeze, ukukhiqizwa kwe-solvent, kanye ne-plasticizer | |||||||||
Iphepha lokulawula ikhwalithi
| Ibizo lomkhiqizo | I-Ethylene Glycol | ||||||
| I-AYITHEMU | INANI ELIJWAYELEKILEKO (%) | INANI LOKUHLOLA (%) | |||||
| Ubumsulwa,% ≥ | 99.8 | 99.9 | |||||
| I-Chromaticity(Pt-Co),≤ | 5 | 5 | |||||
| Ukuminyana,g/cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Indawo eyomileko,℃ ≤ | 199 | 197.4 | |||||
| Umswakama,% ≤ | 0.1 | 0.05 | |||||
| I-esidi (njenge-acetic acid),%≤ | 0.001 | 0.0007 | |||||
| I-Iron(Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Insalela yokuhwamuka,% ≤ | 0.001 | 0.0003 | |||||
| I-Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| I-Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Ngokufingqa
Ngokufingqa, i-ethylene glycol, njengesisetjenziswa esiqakathekileko samakhemikhali, idlala indima eqakathekileko emabubulweni amanengi. Akuthuthukisi ukusebenza kwemikhiqizo nekhwalithi kwaphela kodwana isekela nokuthuthukiswa kwebubulo lesimanjemanje. Ngokuragela phambili kwethekhnoloji, amathuba wokusetjenziswa kwe-ethylene glycol azokubanzi khulu.