I-Ethylene Glycol: I-arhente yekhemikhali kunye ne-antifreeze eneenjongo ezininzi
IiNdawo eziPhambili zeSicelo
Kwishishini leemoto, i-ethylene glycol yinxalenye ephambili ye-antifreeze. Inciphisa iqondo lokubanda kwamanzi, ithintele i-coolant ukuba ingabindi kumaqondo obushushu aphantsi, kwaye inyuse iqondo lokubila, ithintele ubushushu obugqithisileyo benjini. I-antifreeze esekelwe kwi-ethylene glycol isetyenziswa kakhulu kwiinkqubo zokupholisa zeemoto, iilori, kunye nezixhobo zoshishino ukuqinisekisa ukusebenza kwenjini okuqhelekileyo phantsi kwamaqondo obushushu aphezulu. Ukongeza, i-ethylene glycol inokuzinza okuhle kobushushu kunye neempawu zokuthintela ukugqwala, ezinokwandisa ubomi benkonzo yeenkqubo zokupholisa.
Kwishishini leekhemikhali, i-ethylene glycol sisixhobo esibalulekileyo sokwenziwa kwezinto eziphilayo. Isetyenziselwa ukuvelisa i-polyethylene terephthalate (PET), eyona nto iphambili yokwenza izinto kwiifayibha ze-polyester, ii-resins, kunye neebhotile zeplastiki. I-ethylene glycol ingasetyenziselwa ukwenza iintlobo ngeentlobo zeekhompawundi eziphilayo, ezifana ne-ethylene glycol ethers, ii-esters, kunye nee-amines, ezisetyenziswa kakhulu kwizinyibilikisi, kwiingubo, kwii-inki, nakwiikhemikhali ze-elektroniki.
Kwishishini lezemithi, i-ethylene glycol isetyenziswa njengesinyibilikisi kunye nesiphakathi. Inokunyibilikisa ezinye izinto zamayeza, iphucula uzinzo kunye nokunyibilika kwamayeza. Ukongeza, i-ethylene glycol ingasetyenziselwa ukuhlanganisa ezinye izinto zamayeza, ezifana ne-ethylene glycol ethers kunye nee-esters, ezinezicelo ezibalulekileyo ekuhlanganiseni amayeza.
Kwishishini lempahla, i-ethylene glycol isetyenziselwa ukuvelisa imicu ye-polyester. Imicu ye-polyester yaziwa ngamandla ayo aphezulu, ukumelana nokuguguleka, kunye nokugcinwa kakuhle kwemilo, kwaye isetyenziswa kakhulu kwiimpahla, amalaphu asekhaya, kunye namalaphu emizi-mveliso. I-ethylene glycol idlala indima ephambili ekuvelisweni kwemicu ye-polyester ngokudibana ne-terephthalic acid ukwenza i-polyethylene terephthalate (PET), nto leyo ephumela kwimicu ye-polyester esemgangathweni ophezulu.
Kwishishini le-elektroniki, i-ethylene glycol isetyenziswa njengesinyibilikisi kunye nesipholileyo. Ingasetyenziselwa ukucoca izinto ze-elektroniki, ukususa ukungcola komphezulu kunye neentsalela. Ukongeza, izinto zokupholisa ezisekelwe kwi-ethylene glycol zisetyenziswa kwiinkqubo zokupholisa zezixhobo ze-elektroniki ukugcina amaqondo obushushu azinzileyo ngexesha lokusebenza komthwalo ophezulu.
Nangona isetyenziswa ngeendlela ezahlukeneyo, i-ethylene glycol inetyhefu, kwaye ukusetyenziswa kwayo nokugcinwa kwayo kufuna amanyathelo okhuseleko angqongqo. I-ethylene glycol inencasa emnandi, kodwa ukuginywa kwayo kunokubangela ityhefu enzima, ngoko ke kufuneka igcinwe ngokufanelekileyo ukuze kuthintelwe ukufikelela kwabantwana nezilwanyana. Kwimveliso yemizi-mveliso, ukusetyenziswa kwe-ethylene glycol kudla ngokuvela kwiinkqubo ezivaliweyo ukunciphisa impembelelo kwindalo esingqongileyo.
Iinkcukacha
| Igama lemveliso | I-Ethylene Glycol | |||||||||
| Ifomula yeKhemikhali | C2H6O2 | |||||||||
| Ubunzima beMolekyuli | 62.07 g/mol | |||||||||
| Inkangeleko | Ulwelo oluqinileyo olungenambala | |||||||||
| Indawo yokunyibilika | -13.2℃ | |||||||||
| Indawo yokubilisa | 197.3℃ | |||||||||
| Uxinano | 1.1132 g/cm³ | |||||||||
| INOMBOLO YE-CAS | 107 - 21 - 1 | |||||||||
| Ikhowudi ye-HS | 29053100 | |||||||||
| Hayi i-EINECS | 203 - 473 - 3 | |||||||||
| Isicelo | Isetyenziselwa ukuvelisa i-polyester, ukwenziwa kwe-antifreeze, i-solvent, kunye ne-plasticizer | |||||||||
Iphepha Lolawulo Lomgangatho
| Igama lemveliso | I-Ethylene Glycol | ||||||
| INTO | IXABISO ELIQHELEKILEYO(%) | IXABISO LOVAVANYO(%) | |||||
| Ubunyulu,% ≥ | 99.8 | 99.9 | |||||
| I-Chromaticity (Pt-Co), ≤ | 5 | 5 | |||||
| Ubuninzi, g/cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Indawo eyomileyo,℃ ≤ | 199 | 197.4 | |||||
| Ukufuma,% ≤ | 0.1 | 0.05 | |||||
| I-asidi (njenge-acetic acid),%≤ | 0.001 | 0.0007 | |||||
| Isinyithi (Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Intsalela yoMphunga,% ≤ | 0.001 | 0.0003 | |||||
| I-Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| I-Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Isishwankathelo
Ngamafutshane, i-ethylene glycol, njengezinto ezibalulekileyo ze-organic chemical raw material, idlala indima ebalulekileyo kumashishini amaninzi. Ayiphuculi kuphela ukusebenza kwemveliso kunye nomgangatho kodwa ikwaxhasa uphuhliso lweshishini lanamhlanje. Ngokuqhubela phambili kwezobuchwepheshe, amathuba okusetyenziswa kwe-ethylene glycol aya kuba banzi nangakumbi.