Lihlahisoa

Ethylene Glycol

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Lihlahisoa tsa Product

ethylene glycol (ethylene glycol) e boetse e bitsoa "glycol", "1,2-ethylene glycol", e khutsufalitsoeng joalo ka EG. Tsela ea lik'hemik'hale (CH2OH) 2 ke diol e bonolo ka ho fetisisa. Ethylene glycol ha e na mmala, ha e na monko ebile e monate, e chefo ho liphoofolo, 'me lethal dose la motho le ka ba 1.6 g / kg. Ethylene glycol e ka qhibiliha ka metsi le acetone, empa ho qhibiliha ha eona ho ether ho batla ho le nyane. E sebelisoa e le solvent, moemeli oa antifreeze le lisebelisoa tse tala bakeng sa polyester ea maiketsetso.

Thepa ea 'mele

Ponahalo le thepa: mokelikeli o se nang 'mala, o monate ebile o na le viscous

Khatello ea mouoane: 0.06mmHg (0.06mm Hg) / 20 ℃

E tiileng e qamathelang: Limilimithara.pa (16 ℃)

Botlalo: Miscible ka metsi / ethanol / acetone / glyceropyridine acetate, e qhibilihang hanyane ho diethyl ether, e sa qhalaneng ka har'a peterole ea hydrocarbon le oli, e ka qhala lintho tse sa tloaelehang tse kang calcium chloride / zinc chloride / sodium chloride / potassium carbonate / potassium chloride / potassium iodide / potassium hydroxide .

Bokaholimo tsitsipano: 46.49 mN / m (20 ℃)

Flash Point: EA-418-℃

Mocheso o chesang: 1180.26KJ / mol
Ka likhato tse 25 tsa Celsius, kamehla dielectric ke 37
Ho monya mongobo ho bonolo ha mahloriso a le holimo

Morero

E sebelisoa haholo-holo bakeng sa ho etsa polyester, polyester resin, hygroscopic agent, plasticizer, surfactant, fiber ea maiketsetso, litlolo le liqhomane, 'me e sebelisoa e le solvent ea dae, enke joalo-joalo, moemeli oa antifreeze bakeng sa ho lokisa enjene, moemeli o fokotsang khase, ho etsa lehoakhoa, Hape e ka sebelisoa bakeng sa Cellophane, faeba, letlalo, sekgomaretsi wetting moemeli. E ka hlahisa maiketsetso lehoakhoa PET, faeba sehlopheng PET ke poliester faeba, Bottle sehlopheng PET e sebediswa ho etsa diminerale botlolo ea metsi, joalo-joalo E ka boela ea hlahisa alkyd lehoakhoa, glyoxal joalo joalo, 'me e ka boela ea sebelisoa e le moemeli antifreeze. Ntle le ho sebelisoa e le moemeli oa antifreeze bakeng sa likoloi, e boetse e sebelisetsoa ho tsamaisa matla a pholileng a liindastering, ao ka tloaelo a bitsoang mochini o batang. Ka nako e ts'oanang, e ka sebelisoa joalo ka condensate joalo ka metsi.
Lihlahisoa tsa letoto la ethylene glycol methyl ether ke li-solvents tsa maemo a holimo tse nang le ts'ebetso e ntle haholo, tse sebelisoang e le li-solvents le li-diluents bakeng sa enke ea khatiso, lisebelisoa tsa ho hloekisa liindasteri, liaparo (pente ea fiber ea Nitro, varnish, pente ea porcelain), lipoleiti tsa koporo, ho hatisa le ho daea , jj. e ka sebelisoa e le lisebelisoa tse tala bakeng sa ho hlahisa lihlahisoa tsa lik'hemik'hale tse kang li-intermediate tsa chefo e bolaeang likokonyana, lipakeng tsa meriana le maro a maiketsetso a Brake; E ka sebelisoa e le li-electrolyte tsa li-capacitor tsa elektrolytic, lidae tsa letlalo tse etsang letlalo, joalo-joalo.
Ha ethylene glycol e sebelisoa e le mochini o pholileng, tlhokomelo e lokela ho lefuoa:
1. Sebaka sa eona sa leqhoa se fetoha ka phetoho ea mahloriso ea ethylene glycol ka tharollo ea metsi. Ha mahloriso a le ka tlase ho 60%, khokahano ea ethylene glycol ka tharollo ea metsi ea eketseha mme ntlha ea leqhoa ea fokotseha. Leha ho le joalo, kamora hore mahloriso a fete 60%, ka keketseho ea mahloriso ea ethylene glycol, ntlha ea eona ea leqhoa e bonts'a moetlo o nyolohelang holimo, 'me viscosity ea ona le eona e tla eketseha ka keketseho ea mahloriso. Ha mohopolo o fihla ho 99.9%, ntlha ea teng ea leqhoa e nyolohela ho -13.2 ℃, e leng lebaka la bohlokoa hobaneng mokelikeli oa antifreeze mokelikeli ('m'a joala oa mokelikeli o thibelang mocheso) o ke ke oa sebelisoa ka kotloloho, mme o tlameha ho hohela tlhokomelo ea basebelisi.
2. Ethylene glycol e na le lihlopha tsa hydroxyl. Haeba e sebetsa ka 80-90 degrees Celsius ka nako e telele, ethylene glycol e tla tšeloa oxidized ho ethanolic acid pele, ebe e kenella ho oxalic acid, ke hore, acid ea ethanolic (oxalic acid), e nang le lihlopha tse 2 tsa carboxyl. Oxalic acid le lihlahisoa tsa eona li tla ama tsamaiso ea methapo ea mantlha pele, ebe pelo, ebe liphio. Haeba ho se na kalafo e nepahetseng, ho ja ka mokhoa o feteletseng oa ethylene glycol ho tla lebisa lefung. Ethylene glycol acid acid e baka ts'enyeho lisebelisoa 'me e etsa hore e lutle. Ka hona, tharollong e lokisitsoeng ea antifreeze, ho tlameha ho ba le lithibelo ho thibela ts'enyeho ho tšepe le aluminium le moloko oa sekala.
Ho paka, ho boloka le ho tsamaisa
Tletse ka moqomo tšepe GI, 200Kg ka moqomo. Nakong ea polokelo, e lokela ho tiisoa. Bakeng sa polokelo ea nako e telele, e lokela ho tiisoa ka naetrojene, bopaki ba mongobo, bopaki ba mollo le antifreeze. Ho boloka le ho tsamaisa ho latela melaoana e akaretsang ea lik'hemik'hale.


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