Ko te ethylene glycol monomethyl ether (whakapotohia hei MOE), e mohiotia ana ko te ethylene glycol methyl ether, he wai kore tae me te marama, ka uru ki te wai, te waipiro, te waikawa acetic, te acetone me te DMF. Hei whakarewa nui, ka whakamahia nuitia a MOE hei whakarewa mo nga momo hinu, cellulose acetates, cellulose nitrates, waikano wairewa-wairewa me te kapia waihanga.

whakataki taketake

2-Methoxyethanol
CAS 109-86-4
CBN nama: CB4852791
tātai rāpoi: C3H8O2
taimaha rāpoi: 76.09
Ira whakarewa: -85°C
Ira kohua: 124-125°C (marama)
Kiato: 0.965g/mL i te 25°C (marama)
Te pēhanga hau: 6.17mmHg (20°C)
Taupū Reractive: n20/D1.402(marama)
Ira hiko: 115°F
Nga tikanga rokiroki: Pataka+5°Cto+30°C

Tono whakaputa

1. Tikanga whakarite

I ahu mai i te tauhohenga o te ethylene oxide me te methanol. Taapirihia te methanol ki te riipene etero trifluoride boron, ka tukuna ki te ethylene oxide i te 25-30°C i te wa e korikori ana. I muri i te otinga o te waahanga, ka piki aunoa te pāmahana ki te 38-45°C. Ka tukuna te otinga tauhohenga ki te pāhare pāporo hydrocyanide- Whakakorehia te wairewa methanol ki te pH=8-9Chemicalbook. Whakaorangia te mewaro, whakamarohia, ka kohia nga hautau i mua i te 130°C kia whiwhi ai i te hua parakore. Na ka mahi i te whakamaarama hautanga, ka kohia te hautanga 123-125°C hei hua kua oti. I roto i nga mahi ahumahi, ka tauhohehia te ethylene oxide me te methanol anhydrous i te teitei o te pāmahana me te pehanga kaore he whakakorikori, a ka taea te whiwhi hua hua nui.

2. Nga whakamahinga matua

Ka whakamahia tenei hua hei whakarewa mo nga momo hinu, te lignin, te nitrocellulose, te acetate cellulose, te waikano wairewa-wairewa me te kapia waihanga; hei reagent mo te whakatau i te rino, te sulfate me te waro disulfide, hei waimeha mo nga paninga, mo te cellophane. I roto i te takai takai, tere-maroke varnishes me enamels. Ka taea hoki te whakamahi hei kaihoko whakauru me te kaiwhakatairite i roto i te ahumahi tae, hei peera me te whakamarama. Hei takawaenga i roto i te hanga o nga pūhui waro, ko te ethylene glycol monomethyl ether te nuinga e whakamahia ana i roto i te whakahiato o te acetate me te ethylene glycol dimethyl ether. He rauemi mata ano hoki mo te hanga o te bis(2-methoxyethyl) phthalate plasticizer. Ko te ranunga o te ethylene glycol monomethyl ether me te glycerin (ether: glycerin = 98:2) he taapiri wahie jet hoia ka taea te aukati i te hukapapa me te waikura huakita. I te wa e whakamahia ana te ethylene glycol monomethyl ether hei kaihoko whakaahuru wahie jet, ko te nui o te taapiri he 0.15% ± 0.05%. He pai te hydrophilicity. Ka whakamahia e ia tana ake roopu hydroxyl i roto i te wahie hei pahekoheko me te maha o nga ngota ngota wai i roto i te hinu. Ko te hanganga o te hononga here hauwai, me te iti rawa o te waahi mīti, ka whakaheke i te ira mīti o te wai i roto i te hinu, ka rere te wai ki te hukapapa. Ko te Ethylene glycol monomethyl ether he taapiri anti-microbial.

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