hua
2-Methoxyethanol Pai Chemicl Solvent Hewari ngawari ki te wai /Methyl Cellosolve CAS 109-86-4 Mahinga Awhina Matū
Taipitopito hua
MF: C3H8O2
MW: 76.09
CAS: 109-86-4
Ko te 1.Ethylene glycol monomethyl ether (whakapotohia hei MOE), e mohiotia ana ko te ethylene glycol monomethyl ether, he wai marama kore tae, ka uru ki te wai, te waipiro, te waikawa acetic, te acetone me te DMF.Hei whakarewa nui, ka whakamahia nuitia te MOE ki nga momo hinu, cellulose acetate, cellulose nitrate, waikano wairewa waipiro me nga kapia waihanga.
2.Ko nga whakarewa whakamaroke tere mo te tohu me te varnish, te whakakikorua i nga diluent, nga penetrant me nga kaiwhakatairite i roto i te ahumahi tae, ka whakamahia hoki mo te tuhi i nga waituhi, te whakarite i nga hiri, me te hanga kirihou.I nga tau tata nei, kua kaha haere te whakamahi a MOE i roto i te umanga ho'oraa, nga waka rererangi jet fuel anti icing agents, diluent hinu parai, me era atu, a kua piki haere tona horopeta ia tau.Ka whiwhi i te tauhohenga o te ethylene oxide ki te mewaro.
3.Korekore te wai maramara me te kakara reka.Ka uru ki te wai, te waihano, te etera, te glycerol, te acetone me te N, N-dimethylformamide.
4.Ka whiwhi i te tauhohenga o te ethylene oxide me te methanol.Taapirihia te methanol ki te matatini etera boron trifluoride, taapirihia te ethylene oxide i te 25-30 ℃ i raro i te whakaohooho, ka piki aunoa te pāmahana ki te 38-45 ℃ i muri i te paahitanga.Whakakorehia te otinga tauhohenga ki te wairewa methanol pāhare pāporo hydrocayanide ki te ph=8-9pukapuka matū.Whakaorangia te mewaro, whakamaroke, ka kohia te hautau i mua i te 130 ℃ ki te tiki i te hua masivesivá.Katahi ka wehewehea ka kohia te hautau 123-125 ℃, koinei te hua kua oti.I roto i nga mahi ahumahi, ka tauhohehia te ethylene oxide me te methanol anhydrous i te pāmahana teitei me te pehanga teitei, a ka taea te whiwhi hua hua nui me te kore he whakakorikori.
Taupānga
1.Kei te whakamahia hei whakarewa paninga, penetrant, kaiwhakatairite me te whakahiato waro takawaenga, me te taapiri mo te wahie jet.
Ko te 2.2-methoxyethanol, e mohiotia ana ko ethylene glycol monoether, ko te takawaenga o te herbicide ethersulfonyl methyl, me te whakarewa o te nitrocellulose me te kapia waihanga.
3.Ka whakamahia tenei hua hei whakarewa mo nga momo hinu, te lignin, te nitrocellulose, te acetate cellulose, te waikano wairewa waipiro me te kapia waihanga;Ko te pukapuka matū, he reagent mo te whakatau i te rino, te sulfate me te waro disulfide, me te angiangi mo nga paninga, ka whakamahia i roto i te kete me te hiri o te cellophane, te parani whakamaroke tere me te tohu.Ka taea hoki te whakamahi hei penetrant me te kaiwhakatairite i roto i te umanga waikano, hei whakaraerae me te whakamarama.
4. Te whakatau i te rino;Nga tauhohenga warowaiha me te waro disulfide, whakamahia hei hinu rereke;Lignin;Nitrocellulose;Cellulose acetate;Nga whakarewa mo nga waikano wairewa waipiro me nga kapia waihanga.
