Ethylene Glycol: Moemeli oa Lik'hemik'hale le oa Antifreeze o nang le Mesebetsi e mengata
Masimo a Maholo a Kopo
Indastering ea likoloi, ethylene glycol ke karolo e kholo ea antifreeze. E fokotsa ntlha ea ho hoama ea metsi, e thibela coolant ho hoama mochesong o tlase, 'me e phahamisa ntlha ea ho belisa, e thibela ho chesa haholo ha enjene. Antifreeze e thehiloeng ho ethylene glycol e sebelisoa haholo litsamaisong tsa ho pholisa tsa likoloi, literaka le lisebelisoa tsa indasteri ho netefatsa ts'ebetso e tloaelehileng ea enjene tlas'a mocheso o feteletseng. Ho feta moo, ethylene glycol e na le botsitso bo botle ba mocheso le thepa ea thibelo ea mafome, e ka eketsang bophelo ba ts'ebeletso ea litsamaiso tsa ho pholisa.
Indastering ea lik'hemik'hale, ethylene glycol ke thepa ea bohlokoa bakeng sa tlhahiso ea lintho tse phelang. E sebelisoa ho hlahisa polyethylene terephthalate (PET), e leng thepa ea mantlha ea lintho tse phelang bakeng sa likhoele tsa polyester, li-resin le libotlolo tsa polasetiki. Ethylene glycol e ka boela ea sebelisoa ho kopanya metsoako e fapaneng ea lintho tse phelang, joalo ka ethylene glycol ethers, li-ester le li-amine, tse sebelisoang haholo li-solvents, li-coating, li-inke le lik'hemik'hale tsa elektroniki.
Indastering ea meriana, ethylene glycol e sebelisoa e le solvent le intermediate. E ka qhala likarolo tse itseng tsa meriana, e ntlafatsa botsitso le ho qhibiliha ha meriana. Ho feta moo, ethylene glycol e ka sebelisoa ho kopanya metsoako e itseng ea meriana, joalo ka ethers le li-ester tsa ethylene glycol, tse nang le ts'ebeliso ea bohlokoa ho kopanyeng meriana.
Indastering ea masela, ethylene glycol e sebelisoa ho hlahisa likhoele tsa polyester. Likhoele tsa polyester li tsebahala ka matla a tsona a phahameng, ho hanyetsa ho tsofala, le ho boloka sebopeho hantle, 'me li sebelisoa haholo liaparong, masela a lapeng le masela a indasteri. Ethylene glycol e bapala karolo ea bohlokoa tlhahisong ea likhoele tsa polyester ka ho sebelisana le terephthalic acid ho theha polyethylene terephthalate (PET), e leng se fellang ka likhoele tsa polyester tsa boleng bo holimo.
Indastering ea lisebelisoa tsa elektroniki, ethylene glycol e sebelisoa e le solvent le coolant. E ka sebelisoa ho hloekisa likarolo tsa elektroniki, ho tlosa litšila le masalla a holim'a metsi. Ho feta moo, li-coolant tse thehiloeng ho ethylene glycol li sebelisoa litsamaisong tsa ho pholisa tsa lisebelisoa tsa elektroniki ho boloka mocheso o tsitsitseng nakong ea ts'ebetso e phahameng ea mojaro.
Ho sa tsotellehe mefuta e mengata ea ts'ebeliso ea eona, ethylene glycol e chefo, 'me tšebeliso le polokelo ea eona e hloka mehato e tiileng ea ts'ireletso. Ethylene glycol e na le tatso e monate, empa ho e ja ho ka baka chefo e matla, kahoo e lokela ho bolokoa hantle ho thibela phihlello ea bana le liphoofolo. Tlhahisong ea indasteri, tšebeliso ea ethylene glycol hangata e etsahala lits'ebetsong tse koetsoeng ho fokotsa tšusumetso tikolohong.
Litlhaloso
| Lebitso la Sehlahisoa | Ethylene Glycol | |||||||||
| Foromo ea Lik'hemik'hale | C2H6O2 | |||||||||
| Boima ba limolek'hule | 62.07 g/mol | |||||||||
| Ponahalo | Mokelikeli o tiileng o se nang 'mala | |||||||||
| Sebaka sa ho Qhibiliha | -13.2℃ | |||||||||
| Sebaka sa ho bela | 197.3℃ | |||||||||
| Botenya | 1.1132 g/cm³ | |||||||||
| NOMORO EA CAS | 107 - 21 - 1 | |||||||||
| Khoutu ea HS | 29053100 | |||||||||
| EINECS NO | 203 - 473 - 3 | |||||||||
| Kopo | E sebelisetsoa tlhahiso ea polyester, mokhoa oa ho thibela ho hoama, tlhahiso ea solvent le plasticizer | |||||||||
Leqephe la Taolo ea Boleng
| Lebitso la Sehlahisoa | Ethylene Glycol | ||||||
| NTHO | BOHLOKOA BO TLWAELEHILENG(%) | BOLEMO BA TEKO(%) | |||||
| Bohloeki,% ≥ | 99.8 | 99.9 | |||||
| Chromaticity (Pt-Co), ≤ | 5 | 5 | |||||
| Botenya, g/cm3 | 1.1128-1.1138 | 1.1133 | |||||
| Ntlha e omileng,℃ ≤ | 199 | 197.4 | |||||
| Mongobo,% ≤ | 0.1 | 0.05 | |||||
| Asiti (joalo ka asiti ea acetic),% ≤ | 0.001 | 0.0007 | |||||
| Tšepe(Fe),% ≤ | 0.00001 | 0.000005 | |||||
| Masalla a mouoane,% ≤ | 0.001 | 0.0003 | |||||
| Diethylene glycol,% ≤ | 0.10 | 0.01 | |||||
| Aldehyde,% ≤ | 0.0008 | 0.00032 | |||||
Ka kakaretso
Ka bokhutšoanyane, ethylene glycol, e le thepa ea bohlokoa ea lik'hemik'hale tse tala tsa tlhaho, e bapala karolo ea bohlokoa liindastering tse ngata. Ha e ntlafatse ts'ebetso ea sehlahisoa le boleng feela empa hape e tšehetsa nts'etsopele ea indasteri ea sejoale-joale. Ka tsoelo-pele e tsoelang pele ea theknoloji, menyetla ea ts'ebeliso ea ethylene glycol e tla ba kholo le ho feta.