Ethylene glycol monomethyl ether (oo loo soo gaabiyo MOE), oo sidoo kale loo yaqaan ethylene glycol methyl ether, waa dareere aan midab lahayn oo hufan, oo lagu qasi karo biyaha, khamriga, acetic acid, acetone iyo DMF. Iyada oo ah dareere muhiim ah, MOE waxaa si weyn loogu isticmaalaa sidii dareere saliidaha kala duwan, cellulose acetates, cellulose nitrates, midabyada alkohol-milma iyo resins synthetic ah.

Hordhac aasaasi ah

2-Methoxyethanol
CAS 109-86-4
Lambarka CN: CB4852791
Qaacidada molecular-ka: C3H8O2
Miisaanka molecular: 76.09
Barta dhalaalaysa: -85°C
Barta karinta: 124-125°C (iftiin)
Cufnaanta: 0.965g/mL heerkul ah 25°C (iftiin)
Cadaadiska hawada: 6.17mmHg (20°C)
Tusmada Refractive: n20/D1.402(litir)
Barta iftiiminta: 115°F
Xaaladaha kaydinta: Ku kaydi+5°C ilaa+30°C

Codsiga wax soo saarka

1. Habka diyaarinta

Waxaa laga soo qaatay falgalka ethylene oxide iyo methanol. Ku dar methanol isku-dhafka boron trifluoride ether, oo ku dhaaf ethylene oxide 25-30°C inta la walaaqayo. Ka dib marka marinka la dhammeeyo, heerkulku si toos ah ayuu u kordhaa ilaa 38-45°C. Xalka falcelinta ka dhasha waxaa lagu daaweeyaa potassium hydrocyanide- Dhexdhexaadi xalka methanol pH=8-9Chemicalbook. Soo celi methanol, dhalaali, oo ururi jajabyada ka hor 130°C si aad u hesho badeecada cayriin. Kadib samee kala-soocidda jajabka, oo ururi jajabka 123-125°C sida badeecada la dhammeeyay. Wax soo saarka warshadaha, ethylene oxide iyo methanol aan biyo lahayn ayaa lagu falceliyaa heerkul sare iyo cadaadis iyada oo aan lahayn kiciye, waxaana la heli karaa badeecad wax soo saar sare leh.

2. Isticmaalka ugu muhiimsan

Badeecadan waxaa loo isticmaalaa sidii dareere saliidaha kala duwan, lignin, nitrocellulose, cellulose acetate, midabyada alkolada ku milma iyo resins-ka synthetic; sida reagent si loo go'aamiyo birta, sulfate iyo kaarboon disulfide, sida walax lagu qaso dahaarka, iyo cellophane. Shaabadeeyayaasha baakadaha, varnishes-ka iyo enamel-ka si dhakhso ah u qalajiya. Waxa kale oo loo isticmaali karaa sidii wakiil gudaha iyo simistar warshadaha rinjiga, ama sida balaastigeeye iyo dhalaaliye. Iyada oo ah dhexdhexaad wax soo saarka isku-dhafka dabiiciga ah, ethylene glycol monomethyl ether waxaa inta badan loo isticmaalaa isku-darka acetate iyo ethylene glycol dimethyl ether. Sidoo kale waa walaxda ceeriin ee soo saarista bis (2-methoxyethyl) phthalate plasticizer. Isku darka ethylene glycol monomethyl ether iyo glycerin (ether: glycerin = 98:2) waa wax lagu daro shidaalka jet-ka militariga kaas oo ka hortagi kara barafka iyo daxalka bakteeriyada. Marka ethylene glycol monomethyl ether loo isticmaalo sidii wakiil ka hortagga cabbirka shidaalka jet, qadarka guud ee lagu daro waa 0.15% ± 0.05%. Waxay leedahay hydrophilicity wanaagsan. Waxay isticmaashaa kooxdeeda hydroxyl ee shidaalka si ay ula falgasho xaddiga raadadka molecules-ka biyaha ee saliidda ku jira. Samaynta xiriirka isku xidhka haydarojiin, oo ay weheliso barta barafowga ee aadka u hooseysa, waxay hoos u dhigtaa barta barafowga biyaha ee saliidda, taasoo u oggolaanaysa biyuhu inay ku soo dhacaan dhaxan. Ethylene glycol monomethyl ether sidoo kale waa wax lagu daro anti-microbial.

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