Ethylene glycol monomethyl ether (abbreviated bi MOE), ti a tun mọ ni ethylene glycol methyl ether, jẹ omi ti ko ni awọ ati sihin, ti ko ni omi, oti, acetic acid, acetone ati DMF. Gẹgẹbi olutọpa pataki, MOE ti wa ni lilo pupọ bi epo fun ọpọlọpọ awọn greases, acetates cellulose, awọn loore cellulose, awọn awọ ti o ni ọti-lile ati awọn resini sintetiki.

ipilẹ ifihan

2-Methoxyethanol
CAS 109-86-4
CBNnu: CB4852791
Ilana molikula: C3H8O2
molikula àdánù: 76.09
Oju yo: -85°C
Ojutu farabale: 124-125°C (tan.)
iwuwo: 0.965g/ml ni 25°C (tan.)
Iwọn afẹfẹ: 6.17mmHg (20°C)
Atọka itọka: n20/D1.402(tan.)
Aaye filasi: 115°F
Awọn ipo ipamọ: Itaja +5°Cto+30°C

Ohun elo iṣelọpọ

1. Ọna igbaradi

Ti a gba lati inu esi ti oxide ethylene ati methanol. Fi kẹmika kẹmika si boron trifluoride ether complex, ki o kọja ni ethylene oxide ni 25-30°C lakoko ti o nru. Lẹhin ti ilana naa ti pari, iwọn otutu yoo dide laifọwọyi si 38-45 ° C. Ojutu esi esi ti jẹ itọju pẹlu potasiomu hydrocyanide- Neutralize the methanol ojutu si pH=8-9Chemicalbook. Bọsipọ methanol, sọ distill, ati gba awọn ida ṣaaju 130°C lati gba ọja robi. Lẹhinna gbe distillation ida, ati gba ida 123-125 ° C bi ọja ti pari. Ninu iṣelọpọ ile-iṣẹ, ohun elo afẹfẹ ethylene ati methanol anhydrous ni a ṣe ni iwọn otutu giga ati titẹ laisi ayase, ati pe ọja ikore giga le ṣee gba.

2. Main ipawo

Ọja yii ni a lo bi epo fun awọn oriṣiriṣi awọn epo, lignin, nitrocellulose, acetate cellulose, awọn awọ ti o ni ọti-lile ati awọn resini sintetiki; bi reagent fun ipinnu irin, sulfate ati carbon disulfide, bi diluent fun awọn aṣọ, ati fun cellophane. Ni awọn edidi apoti, awọn varnishes ti o yara-gbigbe ati awọn enamels. O tun le ṣee lo bi oluranlowo ti nwọle ati aṣoju ipele ni ile-iṣẹ dai, tabi bi ṣiṣu ati didan. Gẹgẹbi agbedemeji ni iṣelọpọ awọn agbo ogun Organic, ethylene glycol monomethyl ether ni a lo ni akọkọ ninu iṣelọpọ ti acetate ati ethylene glycol dimethyl ether. O tun jẹ ohun elo aise fun iṣelọpọ bis (2-methoxyethyl) ṣiṣu phthalate. Adalu ethylene glycol monomethyl ether ati glycerin (ether: glycerin = 98: 2) jẹ aropo epo ọkọ ofurufu ologun ti o le ṣe idiwọ icing ati ipata kokoro-arun. Nigbati a ba lo ethylene glycol monomethyl ether bi aṣoju antisizing idana ọkọ ofurufu, iye afikun gbogbogbo jẹ 0.15% ± 0.05%. O ni hydrophilicity ti o dara. O nlo ẹgbẹ hydroxyl tirẹ ninu idana lati ṣe ajọṣepọ pẹlu awọn iye itọpa ti awọn ohun elo omi ninu epo. Ipilẹṣẹ ẹgbẹ asopọ hydrogen, papọ pẹlu aaye didi kekere rẹ, dinku aaye didi ti omi ninu epo, gbigba omi laaye lati ṣaju sinu Frost. Ethylene glycol monomethyl ether tun jẹ arosọ egboogi-microbial.

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