Ethylene glycol monomethyl ether (wanda aka rage wa suna MOE), wanda kuma aka sani da ethylene glycol methyl ether, ruwa ne mara launi kuma mai haske, wanda za a iya mirgine shi da ruwa, barasa, acetic acid, acetone da DMF. A matsayin muhimmin sinadari, ana amfani da MOE sosai a matsayin sinadari ga nau'ikan mai, cellulose acetates, cellulose nitrates, dyes masu narkewar barasa da resins na roba.

gabatarwa ta asali

2-Methoxyethanol
CAS 109-86-4
Lambar CN: CB4852791
Tsarin kwayoyin halitta: C3H8O2
Nauyin kwayoyin halitta: 76.09
Wurin narkewa: -85°C
Tafasawar zafin jiki: 124-125°C (haske)
Yawa: 0.965g/mL a 25°C (lit.)
Matsin iska: 6.17mmHg (20°C)
Fihirisar haske: n20/D1.402(lit.)
Wurin walƙiya: 115°F
Yanayin Ajiya: Ajiya daga+5°C zuwa+30°C

Aikace-aikacen samarwa

1. Hanyar shiri

An samo shi ne daga amsawar ethylene oxide da methanol. A zuba methanol a cikin hadadden boron trifluoride ether, sannan a zuba ethylene oxide a zafin 25-30°C yayin juyawa. Bayan an gama wucewar, zafin zai tashi ta atomatik zuwa 38-45°C. Maganin amsawar da aka samu ana yi masa magani da potassium hydrocyanide- Neutralize the methanol complex zuwa pH=8-9Chemicalbook. A dawo da methanol, a tace shi, sannan a tattara sassan kafin 130°C don samun samfurin da ba a tace ba. Sannan a yi distillation na fractional distillation, sannan a tattara sassan 123-125°C a matsayin samfurin da aka gama. A cikin samar da masana'antu, ana yin ethylene oxide da methanol mai ruwa-ruwa a zafin jiki mai yawa da matsin lamba ba tare da mai kara kuzari ba, kuma ana iya samun samfurin mai yawan amfani.

2. Babban amfani

Ana amfani da wannan samfurin a matsayin mai narkewa ga mai daban-daban, lignin, nitrocellulose, cellulose acetate, rini masu narkewar barasa da resin roba; a matsayin mai amsawa don tantance ƙarfe, sulfate da carbon disulfide, a matsayin mai narkewa don shafa, da kuma don cellophane. A cikin marufi, varnishes da enamel masu busarwa cikin sauri. Hakanan ana iya amfani da shi azaman mai shiga ciki da mai daidaita a masana'antar rini, ko kuma azaman mai sanya filastik da mai haskakawa. A matsayin matsakaici a cikin samar da mahaɗan halitta, ana amfani da ethylene glycol monomethyl ether galibi wajen haɗa acetate da ethylene glycol dimethyl ether. Hakanan shine kayan da ake amfani da su don samar da bis(2-methoxyethyl) phthalate plasticizer. Haɗin ethylene glycol monomethyl ether da glycerin (ether: glycerin = 98:2) ƙari ne na man fetur na jet na soja wanda zai iya hana icing da lalata ƙwayoyin cuta. Lokacin da aka yi amfani da ethylene glycol monomethyl ether a matsayin mai hana haɓaka mai, yawan ƙarin shine 0.15% ± 0.05%. Yana da kyakkyawan hydrophilicity. Yana amfani da rukunin hydroxyl ɗinsa a cikin man fetur don yin hulɗa da adadin ƙwayoyin ruwa a cikin mai. Samar da haɗin hydrogen, tare da ƙarancin wurin daskarewarsa, yana rage wurin daskarewar ruwa a cikin mai, yana barin ruwan ya zube zuwa sanyi. Ethylene glycol monomethyl ether shima ƙari ne na hana ƙwayoyin cuta.

Marufi, ajiya da sufuri

Ana sanya iska a rumbun ajiya kuma a busar da shi a ƙananan zafin jiki; ana adana shi daban daga masu hana iskar oxygen.

Bayanin hulda

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