Ethylene glycol monomethyl ether (e khutsufalitsoeng e le MOE), e tsejoang hape e le ethylene glycol methyl ether, ke mokelikeli o se nang 'mala le o bonaletsang, o kopantsoeng le metsi, joala, asetiki, asetone le DMF. Jwalo ka sethapo sa bohlokwa, MOE e sebediswa haholo e le sethapo sa mafura a fapaneng, di-acetate tsa cellulose, di-nitrate tsa cellulose, didae tse qhibilihang ka hara joala le di-resin tsa maiketsetso.

selelekela sa motheo

2-Methoxyethanol
CAS 109-86-4
Nomoro ea CB: CB4852791
Foromo ea limolek'hule: C3H8O2
boima ba limolek'hule: 76.09
Sebaka sa ho qhibiliha: -85°C
Boemo ba ho belisa: 124-125°C (ho bonesa)
Botenya: 0.965g/mL ho 25°C (ha e le hantle)
Khatello ea moea: 6.17mmHg (20°C)
Letšoao la refractive: n20/D1.402(lit.)
Sebaka sa ho phatloha ha lebone: 115°F
Maemo a polokelo: Boloka ho +5°C ho isa ho +30°C

Kopo ea tlhahiso

1. Mokhoa oa ho lokisa

E nkiloe karabelong ea ethylene oxide le methanol. Kenya methanol ho boron trifluoride ether complex, 'me u fetisetse ethylene oxide ho 25-30°C ha u ntse u hlohlelletsa. Kamora hore phetiso e phetheloe, mocheso o nyolohela ka bohona ho 38-45°C. Tharollo ea karabelo e hlahisoang e phekoloa ka potassium hydrocyanide- Halafatsa tharollo ea methanol ho pH=8-9Chemicalbook. Fumana methanol, e qhibilihe, 'me u bokelle likaroloana pele ho 130°C ho fumana sehlahisoa se tala. Ebe u etsa distillation ea likaroloana, 'me u bokelle karoloana ea 123-125°C e le sehlahisoa se felileng. Tlhahisong ea indasteri, ethylene oxide le methanol e sa hloekang li arajoa mochesong o phahameng le khatello ntle le catalyst, 'me sehlahisoa se nang le chai e ngata se ka fumanoa.

2. Tšebeliso e ka sehloohong

Sehlahisoa sena se sebelisoa e le tharollo bakeng sa oli tse fapaneng, lignin, nitrocellulose, cellulose acetate, lidae tse qhibilihang ka joala le li-resin tsa maiketsetso; e le reagent bakeng sa ho fumana tšepe, sulfate le carbon disulfide, e le motsoako oa ho koahela, le bakeng sa cellophane. Liphuthelong tsa ho paka, li-varnish tse omisang kapele le li-enamel. E ka boela ea sebelisoa e le moemeli ea kenellang le moemeli oa ho leka-lekanya indastering ea dae, kapa e le plasticizer le brightener. E le e bohareng tlhahisong ea metsoako ea manyolo, ethylene glycol monomethyl ether e sebelisoa haholo ho etseng 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 sesebelisoa sa mafura sa sesole se ka thibelang leqhoa le ho bola ha baktheria. Ha ethylene glycol monomethyl ether e sebediswa e le moemedi wa ho thibela boholo ba mafura a jet, tjhelete e akaretsang ya ho eketsa ke 0.15% ± 0.05%. E na le philicity e ntle ya hydroxyl. E sebedisa sehlopha sa yona sa hydroxyl mafurang ho sebelisana le bongata ba dimolek'hule tsa metsi tse ka hara oli. Ho thehwa ha kamano ya hydrogen bond, hammoho le ntlha ya yona e tlase haholo ya ho hoama, ho fokotsa ntlha ya ho hoama ya metsi ka hara oli, ho dumella metsi ho kena serameng. Ethylene glycol monomethyl ether le yona ke sehlomathiso sa dikokwana-hloko.

Ho paka, ho boloka le ho tsamaisa

Ntlo ea polokelo e na le moea o kenang le ho omisoa mochesong o tlase; e bolokiloe ka thoko ho li-oxidant.

Mokhoa oa puisano

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