Dimethylamide/ DimethylFormamide
Kagwiritsidwe:Dimethylamide (DMF) ndi mankhwala ofunikira kwambiri komanso chosungunulira chapamwamba, chomwe chimagwiritsidwa ntchito makamaka m'mafakitale monga polyurethane, acrylic, mankhwala, mankhwala ophera tizilombo, utoto, zamagetsi, ndi zina zotero. Monga chotsukira ndi kuchiritsa mumakampani opanga polyurethane, imagwiritsidwa ntchito kwambiri popanga chikopa chonyowa; Monga mankhwala opangira pakati pamakampani opanga mankhwala, imagwiritsidwa ntchito kwambiri popanga mankhwala a doxycycline, cortisone, ndi sulfonamide; Monga chosungunulira mumakampani opanga ulusi wa acrylic, imagwiritsidwa ntchito kwambiri popanga ulusi wa acrylic wouma; Imagwiritsidwa ntchito mumakampani opanga mankhwala ophera tizilombo popanga mankhwala ophera tizilombo ogwira ntchito bwino komanso ochepa poizoni; Imagwiritsidwa ntchito ngati chosungunulira utoto mumakampani opanga utoto; Kuzimitsa zinthu zophimbidwa ndi zitini ndikuyeretsa ma circuit board mumakampani opanga zamagetsi; Makampani ena akuphatikizapo zonyamula mpweya woopsa, zosungunulira za crystallization ya mankhwala, zomatira, ndi zina zotero.
Dzina la mankhwala: N, N-dimethylacetamide
Dimethylacetamide ndi chosungunulira champhamvu cha polar non protonated chomwe chimatha kusungunula mankhwala osiyanasiyana ndipo chimasakanikirana kwathunthu ndi madzi, ma ether, ma ketone, ma esters, ndi zina zotero. Chili ndi kukhazikika kwa kutentha kwakukulu, kukana hydrolysis kochepa, dzimbiri lochepa, komanso poizoni wochepa. Chili ndi kusungunuka kwabwino kwa ma resin osiyanasiyana, makamaka polyurethane resin ndi polyimide resin, ndipo chingagwiritsidwe ntchito ngati chosungunulira cha ulusi wopangidwa wosatentha, mafilimu apulasitiki, zokutira, mankhwala, ndi acrylonitrile spinning. Dimethylacetamide, monga poizoni wochepa, kutentha kwambiri, komanso polarity yokwera non proton solvent ndi chemical intermediate, imagwiritsidwa ntchito kwambiri m'minda monga zinthu zopangira, mankhwala, mankhwala ophera tizilombo, ulusi wa mankhwala, kukonza mafuta, ndi utoto wachilengedwe.
Kodi ntchito zazikulu za dimethyl formamide ndi ziti?
01amagwiritsidwa ntchito ngati chotsukira ndi chosungunulira cha ethylene resin ndi acetylene
02ndi chosungunulira chabwino kwambiri chachilengedwe chomwe chimagwiritsidwa ntchito ngati chosungunulira cha polyurethane, polyacrylonitrile, ndi polyvinyl chloride, komanso ngati zinthu zopangira zotulutsa, mankhwala, ndi mankhwala ophera tizilombo monga imidacloprid.
03Dimethylformamide si mankhwala opangidwa ndi mankhwala okha, komanso ndi mankhwala abwino kwambiri okhala ndi ntchito zosiyanasiyana. Dimethylformamide ndi mankhwala abwino opangidwa ndi ma polima osiyanasiyana monga polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ndi zina zotero. Angagwiritsidwe ntchito popota ulusi wopangidwa ndi madzi monga ulusi wa polyacrylonitrile ndi kupanga polyurethane; Amagwiritsidwa ntchito popanga filimu ya pulasitiki; Angagwiritsidwenso ntchito ngati chochotsera utoto pochotsa utoto; Angathenso kusungunula utoto wina wochepa, zomwe zimawapatsa mawonekedwe a utoto. Dimethylformamide imagwiritsidwa ntchito pochotsa hydrocarbon, komanso kulekanitsa ndi kubwezeretsa butadiene kuchokera ku C4 fraction ndi isoprene kuchokera ku C5 fraction. Angagwiritsidwenso ntchito ngati reagent yothandiza polekanitsa zigawo zosakhala za hydrocarbon kuchokera ku paraffin. Ali ndi kusankha kwabwino kwa kusungunuka kwa isophthalic acid ndi terephthalic acid: kusungunuka kwa isophthalic acid mu dimethylformamide ndi kwakukulu kuposa komwe kuli mu terephthalic acid. Kutulutsa zosungunulira kapena kusakaniza pang'ono kwa makristalo mu dimethylformamide kumatha kulekanitsa ziwirizi. Mu makampani opanga petrochemical, dimethyl formamide ingagwiritsidwe ntchito ngati choyamwitsa mpweya wolekanitsa ndi kuyeretsa mpweya. Mu zochitika zachilengedwe, dimethylformamide siigwiritsidwa ntchito kwambiri ngati chosungunulira, komanso ndi gawo lofunika kwambiri pakupanga zinthu zachilengedwe. Ingagwiritsidwe ntchito kupanga chlorpyrifos mumakampani opanga mankhwala ophera tizilombo; Mumakampani opanga mankhwala, ingagwiritsidwe ntchito kupanga pyrimidine iodide, doxycycline, cortisone, vitamini B6, iodoside, Qubijing, thiapyrimidine, N-formyl sarcolysin, antineoplastic acid, methoxyaromaine, bianzapine, cyclohexanone nitrourea, furfouroacil, hemostatic acid, Fenfenmethasone, medroxyprogesterone, biliveratrol, chlorpheniramine, ndi zina zotero. Dimethylformamide imagwira ntchito yothandiza kwambiri pakupanga hydrogenation, dehydrogenation, dehydration, ndi dehalogenation reactions, kuchepetsa kutentha kwa reaction ndikuwongolera kuyera kwa mankhwala.
04Chosakaniza chopanda madzi chotchedwa titration reagent, chosungunulira cha ethylene resin ndi acetylene, kapangidwe ka organic, photometry, gas chromatography stationary phase (kutentha kwakukulu kogwira ntchito 50 ℃, solvent methanol), kulekanitsa ndi kusanthula kwa ma hydrocarbon a C2-C5, komanso kuthekera kolekanitsa normal, isobutene, cis, ndi trans butene. Kusanthula zotsalira za mankhwala ophera tizilombo. Kupanga kwachilengedwe. Kupanga kwa peptide. Kugwiritsidwa ntchito mumakampani ojambula zithunzi.
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