2-Methoxyethanol CAS 109-86-4
Chiyambi cha malonda
Ethylene glycol monomethyl ether (yofupikitsidwa monga MOE), yomwe imadziwikanso kuti ethylene glycol methyl ether, ndi madzi opanda mtundu komanso owoneka bwino, osakanikirana ndi madzi, mowa, acetic acid, acetone ndi DMF. Monga chosungunulira chofunikira, MOE imagwiritsidwa ntchito kwambiri ngati chosungunulira chamafuta osiyanasiyana, ma cellulose acetates, ma nitrate a cellulose, utoto wosungunuka ndi mowa ndi ma resins opangira.
Iwo analandira ndi zimene ethylene okusayidi ndi methanol. Onjezani methanol ku boron trifluoride ether complex, ndikudutsa mu ethylene oxide pa 25-30 ° C ndikuyambitsa. Ndimeyi ikamalizidwa, kutentha kumangokwera mpaka 38-45 ° C. Zotsatira zake zimathandizidwa ndi potassium hydrocyanide- Neutralize the methanol solution to pH=8-Chemicalbook9. Bweretsani methanol, muyisungunule, ndipo sonkhanitsani tizigawo ting'onoting'ono 130 ° C isanakwane kuti mutenge zinthu zopanda pake. Kenako pangani distillation yagawo, ndipo sonkhanitsani kagawo ka 123-125 ° C ngati chomalizidwa. Popanga mafakitale, ethylene oxide ndi anhydrous methanol amachitidwa pa kutentha kwambiri komanso kupanikizika popanda chothandizira, ndipo zokolola zambiri zimatha kupezeka.
Munda wofunsira
Izi zimagwiritsidwa ntchito ngati zosungunulira zamafuta osiyanasiyana, lignin, nitrocellulose, cellulose acetate, utoto wosungunuka ndi mowa ndi utomoni wopangira; monga reagent kutsimikiza chitsulo, sulphate ndi carbon disulfide, monga diluent kwa zokutira, ndi cellophane. M'mapaketi osindikizira, ma varnish amawumitsa mwachangu ndi enamel. Itha kugwiritsidwanso ntchito ngati cholowera komanso chowongolera mumakampani opanga utoto, kapena ngati pulasitiki ndi chowunikira. Monga wapakatikati pakupanga zinthu zachilengedwe, ethylene glycol monomethyl ether imagwiritsidwa ntchito kwambiri popanga acetate ndi ethylene glycol dimethyl ether. Ndi Chemicalbook zopangira kupanga bis(2-methoxyethyl)phthalate plasticizer. Kusakaniza kwa ethylene glycol monomethyl ether ndi glycerin (ether: glycerin = 98: 2) ndi mafuta owonjezera ankhondo omwe angalepheretse icing ndi dzimbiri la bakiteriya. Pamene ethylene glycol monomethyl ether ntchito ngati ndege mafuta antisizing wothandizira, ambiri Kuwonjezera kuchuluka ndi 0,15% ± 0.05%. Ili ndi hydrophilicity yabwino. Amagwiritsa ntchito gulu lake la hydroxyl mumafuta kuti agwirizane ndi kuchuluka kwa mamolekyu amadzi mumafuta. Kupangidwa kwa hydrogen bond association, pamodzi ndi malo ake ozizira kwambiri, kumachepetsa kuzizira kwa madzi mu mafuta, zomwe zimapangitsa kuti madzi alowe mu ayezi. Ethylene glycol monomethyl ether ndi anti-microbial additive.
Kufotokozera za zomangamanga
2-Methoxyethanol
CAS 109-86-4
Nambala ya CB: CB4852791
Molecular formula: C3H8O2
Kulemera kwa molekyulu: 76.09
Malo osungunuka: -85°C
Kuwira: 124-125°C (kuyatsa)
Kachulukidwe: 0.965g/mL pa 25°C (lit.)
Kuthamanga kwa mpweya: 6.17mmHg (20°C)
Refractive index: n20/D1.402(lit.)
Pothirira: 115°F
Malo osungira: Kusungirako +5°Cto+30°C
Kusungirako ndi mayendedwe
Kulongedza: malinga ndi zomwe kasitomala amafuna
Kusungirako: Sungani pamalo owuma, amdima ndi mpweya wabwino.
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