Ethylene glycol monomethyl ether (e khutsufalitsoeng e le MOE), e tsejoang hape e le ethylene glycol methyl ether, ke mokelikeli o se nang mebala le o bonaletsang, o kopanyang metsi, joala, acetic acid, acetone le DMF. Joaloka motsoako oa bohlokoa, MOE e sebelisoa haholo e le motsoako oa li-grease tse fapa-fapaneng, cellulose acetates, cellulose nitrate, lidae tse qhibilihang ka joala le li-resin tsa maiketsetso.

selelekela sa motheo

2-Methoxyethanol
CAS 109-86-4
CBNomoro: CB4852791
Foromo ea molek'hule : C3H8O2
boima ba molek'hule: 76.09
Sebaka se qhibilihang: -85°C
Sebaka se belang: 124-125°C (hote.)
Boima: 0.965g/mL ho 25°C (lit.)
Khatello ea moea: 6.17mmHg (20°C)
Lenane la refractive: n20/D1.402(lit.)
Sebaka se benyang: 115°F
Maemo a polokelo: Lebenkele+5°Cto+30°C

Kopo ea tlhahiso

1. Mokhoa oa ho itokisa

E tsoa ho karabelo ea ethylene oxide le methanol. Kenya methanol ho boron trifluoride ether complex, 'me u fete ka ethylene oxide ho 25-30 ° C ha u ntse u susumetsa. Ka mor'a hore mokhoa ona o phethoe, mocheso o nyolohela ho 38-45 ° C. Tharollo e hlahisoang ke karabelo e phekoloa ka potassium hydrocyanide- Neutralize tharollo ea methanol ho pH=8-9Chemicalbook. Khutlisa methanol, e qhala, 'me u bokelle likaroloana pele ho 130°C ho fumana sehlahisoa se tala. Ebe u etsa distillation e fokolang, 'me u bokelle karoloana ea 123-125 ° C e le sehlahisoa se felileng. Tlhahisong ea indasteri, ethylene oxide le methanol ea anhydrous li sebetsanoa ka mocheso o phahameng le khatello ntle le ho kenya letsoho, 'me sehlahisoa se phahameng sa lihlahisoa se ka fumanoa.

2. Lisebelisoa tse ka sehloohong

Sehlahisoa sena se sebelisoa e le motsoako oa lioli tse fapa-fapaneng, lignin, nitrocellulose, cellulose acetate, lidae tse qhibilihang ka joala le li-resin tsa maiketsetso; e le reagent bakeng sa qeto ea tšepe, sulfate le carbon disulfide, e le diluent bakeng sa ho roala, le bakeng sa cellophane. Li-sealers tsa ho paka, li-varnish tse omisang ka potlako le li-enamel. E ka boela ea sebelisoa e le ntho e phunyeletsang le ea ho lekanya indastering ea dae, kapa e le polasetiki le se khanyang. E le karolo e bohareng ea tlhahiso ea metsoako ea lintho tse phelang, ethylene glycol monomethyl ether e sebelisoa haholo-holo ha ho etsoa acetate le ethylene glycol dimethyl ether. Hape ke thepa e tala bakeng sa tlhahiso ea bis(2-methoxyethyl) phthalate plasticizer. Motsoako oa ethylene glycol monomethyl ether le glycerin (ether: glycerin = 98: 2) ke motsoako oa mafura a jete a sesole a ka thibelang ho senya le ho senya baktheria. Ha ethylene glycol monomethyl ether e sebelisoa e le sesebelisoa se thibelang mafura a jet, kakaretso ea kakaretso ke 0.15% ± 0.05%. E na le hydrophilicity e ntle. E sebelisa sehlopha sa eona sa hydroxyl ka har'a mafura ho sebelisana le palo ea limolek'hule tsa metsi ka har'a oli. Ho thehoa ha hydrogen bond association, hammoho le sebaka sa eona sa leqhoa se tlaase haholo, ho theola ntlha ea leqhoa ea metsi ka har'a oli, e leng ho lumellang metsi hore a be serame. Ethylene glycol monomethyl ether le eona ke motsoako o thibelang likokoana-hloko.

Ho paka, ho boloka le ho tsamaisa

Sebaka sa polokelo se tšeloa moea le ho omisoa ka mocheso o tlase; e bolokiloe ka thoko ho li-oxidants.

Mokhoa oa puisano

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