Mtengo Wabwino Wopanga N,N-DIMETHYLFORMAMIDE(DMF) CAS 68-12-2

kufotokozera mwachidule:

N,N-DIMETHYLFORMAMIDE ndi chidule cha DMF. Ndi mankhwala opangidwa ndi kusintha gulu la hydroxyl la formic acid ndi gulu la dimethylamino, ndipo fomula ya molekyulu ndi HCON(CH3)2. Ndi madzi opanda mtundu, owonekera bwino, otentha kwambiri okhala ndi fungo lochepa la amine komanso kuchuluka kwa 0.9445 (25°C). Malo osungunuka -61 ℃. Malo otentha 152.8 ℃. Malo owunikira 57.78 ℃. Kuchuluka kwa nthunzi 2.51. Kuthamanga kwa nthunzi 0.49kpa (3.7mmHg25 ℃). Malo oyatsira okha ndi 445°C. Malire a kuphulika kwa nthunzi ndi mpweya ndi 2.2 mpaka 15.2%. Ngati lawi lotseguka ndi kutentha kwambiri, lingayambitse kuyaka ndi kuphulika. Limatha kuchitapo kanthu mwamphamvu ndi sulfuric acid yolimba komanso nitric acid yoyaka ndipo imatha kuphulika. Limasakanikirana ndi madzi ndi zinthu zambiri zachilengedwe. Ndi chinthu chosungunuka chomwe chimagwiritsidwa ntchito pochiza matenda a chemical reactions. N,N-DIMETHYLFORMAMIDE yoyera ilibe fungo, koma N,N-DIMETHYLFORMAMIDE yodziwika bwino kapena yoonongeka ili ndi fungo la nsomba chifukwa ili ndi zinthu zodetsa za dimethylamine.

CAS: 68-12-2

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

kufotokozera

Dzinali limachokera ku mfundo yakuti ndi dimethyl yomwe imalowa m'malo mwa formamide (amide ya formic acid), ndipo magulu onse awiri a methyl ali pa atomu ya N (nayitrogeni). N,N-DIMETHYLFORMAMID ndi soluble ya polar (hydrophilic) aprotic solvent yowira kwambiri, ndipo Chemicalbook imatha kulimbikitsa njira ya SN2 reaction. N,N-DIMETHYLFORMAMID imapangidwa pogwiritsa ntchito formic acid ndi dimethylamine. N,N-DIMETHYLFORMAMID ndi yosakhazikika (makamaka kutentha kwambiri) pamaso pa maziko olimba monga sodium hydroxide kapena ma acid amphamvu monga hydrochloric acid kapena sulfuric acid, ndipo imasungunuka kukhala formic acid ndi dimethylamine. Ndi yokhazikika kwambiri mumlengalenga ndipo ikatenthedwa mpaka kuwira. Kutentha kukapitirira 350 ℃, imataya madzi ndikupanga carbon monoxide ndi dimethylamine. N,N-DIMETHYLFORMAMID ndi chosungunulira chabwino cha aprotic polar, chomwe chimatha kusungunula zinthu zambiri zachilengedwe ndi zosapangidwa, ndipo chimasakanikirana ndi madzi, ma alcohols, ma ether, ma aldehydes, ma ketones, ma esters, ma halogenated hydrocarbons ndi ma aromatic hydrocarbons, ndi zina zotero. Mapeto a molekyulu ya N,N-DIMETHYLFORMAMID omwe ali ndi mphamvu yabwino amazunguliridwa ndi magulu a methyl, zomwe zimapangitsa kuti ma ion oipa asayandikire, koma ma ion abwino okha ndi omwe amagwirizanitsidwa. Anion yopanda pake imagwira ntchito kwambiri kuposa anion yosungunuka. Ma ion ambiri amachitidwa mosavuta mu N,N-DIMETHYLFORMAMID kuposa ma solvents ambiri a protic, mwachitsanzo, momwe ma carboxylates amachitira ndi ma hydrocarbons a halogenated mu N,N-DIMETHYLFORMAMID kutentha kwa chipinda, amatha kupanga ma esters okwera mtengo, makamaka oyenera kupanga ma esters otsekedwa bwino.

Kapangidwe.Mawu ofanana

amide,n,n-dimethyl-formicaci; Dimethylamidkyselinymravenci; dimethylamidkyselinymravenci; N,N-DIMETHYLFORMAMIDE,99.9+%,HPLCGRADE; NN-DIMETHYLFORChemicalbookMAMIDE99.8%ACS&;N,N-DIMETHYLFORMAMIDE,4X25ML; N,N-DIMETHYLFORMAMIDE,MOLECULARBIOLOGYREANT; N,N-DIMETHYLFORMAMIDEENEUTRALMARKER*FORCAPILLARY

Kugwiritsa ntchito DMF

DMF ndi chosungunulira chabwino cha ma polima osiyanasiyana okhala ndi ma polima ambiri monga polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ndi zina zotero, ndipo chingagwiritsidwe ntchito popota ulusi wopangidwa monyowa monga ulusi wa polyacrylonitrile, komanso kupanga polyurethane; chimagwiritsidwa ntchito popanga filimu ya pulasitiki; chingagwiritsidwenso ntchito ngati chochotsera utoto pochotsa utoto; chingathenso kusungunula utoto wina wosungunuka pang'ono, kotero kuti utotowo ukhale ndi mawonekedwe ofanana ndi utoto. DMF imagwiritsidwa ntchito pochotsa zonunkhira ndikulekanitsa ndi kubwezeretsa butadiene kuchokera ku zigawo za C4 ndi isoprene kuchokera ku zigawo za C5, ndipo chingagwiritsidwenso ntchito ngati chothandizira chothandiza pakulekanitsa zigawo zosakhala za hydrocarbon kuchokera ku paraffin. Chili ndi kusankha bwino kwa kusungunuka kwa isophthalic acid ndi terephthalic acid: isophthalic acid imasungunuka kwambiri mu DMF kuposa terephthalic acid, kuchotsa solvent kapena Crystallization pang'ono, ziwirizi zitha kulekanitsidwa. Mumakampani opanga petrochemical, DMF ingagwiritsidwe ntchito ngati choyamwa mpweya kuti ilekanitse ndikuyeretsa mpweya. Monga chotsukira cha kutsuka Chemicalbook mumakampani opanga polyurethane, imagwiritsidwa ntchito kwambiri popanga chikopa chonyowa; monga chosungunulira mumakampani opanga ulusi wa acrylic, imagwiritsidwa ntchito kwambiri popanga ulusi wa acrylic wouma; mumakampani opanga zamagetsi monga kuzima ziwalo zophimbidwa ndi zitini ndi mabwalo ozungulira Mafakitale ena amaphatikizapo zonyamula mpweya woopsa, zosungunulira za mankhwala opangira makristalo, zomatira, ndi zina zotero. Mu machitidwe achilengedwe, DMF siimagwiritsidwa ntchito kwambiri ngati chosungunulira cha zomwe zimachitika, komanso ndi gawo lofunika kwambiri pakupanga zinthu zachilengedwe. Mumakampani opanga mankhwala ophera tizilombo, ingagwiritsidwe ntchito kupanga ciprofloxacin; mumakampani opanga mankhwala, ingagwiritsidwe ntchito kupanga ayodini, doxycycline, cortisone, vitamini B6, ayodini, quercetin, pyrantel, N-formylsarcomin, Oncoline, methoxyfen, benzodiazepine, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, megestrol, bilevita, chlorpheniramine, sulfonamides Kupanga. DMF imakhala ndi mphamvu yothandiza pa zochita za hydrogenation, dehydrogenation, dehydration ndi dehydrohalogenation, kotero kuti kutentha kwa reaction kumachepetsedwa ndipo kuyera kwa chinthucho kumawonjezeka.

1. Ndi chosungunulira chabwino kwambiri chachilengedwe, chomwe chimagwiritsidwa ntchito ngati chosungunulira cha polyurethane, polyacrylonitrile, ndi polyvinyl chloride, komanso chimagwiritsidwa ntchito ngati chochotsera, ngati zinthu zopangira mankhwala ndi mankhwala ophera tizilombo.

2. Amagwiritsidwa ntchito ngati chosinthira mawu ndi chosungunulira cha utomoni wa vinilu ndi acetylene

3. Si mankhwala okha omwe amagwiritsidwa ntchito m'njira zosiyanasiyana, komanso ndi solvent yabwino kwambiri yomwe imagwiritsidwa ntchito m'njira zosiyanasiyana. DMF ndi solvent yabwino yopangira ma polima ambiri monga polyethylene, polyvinyl chloride, polyacrylonitrile, polyamide, ndi zina zotero, ndipo ingagwiritsidwe ntchito popota ulusi wopangidwa monga polyacrylonitrile, komanso kupanga polyurethane; Imagwiritsidwa ntchito popanga filimu ya pulasitiki; ingagwiritsidwenso ntchito ngati chochotsera utoto pochotsa utoto; imathanso kusungunula utoto wina wochepa, kotero kuti utotowo ukhale ndi mawonekedwe ofanana ndi utoto. DMF imagwiritsidwa ntchito pochotsa ndi kugawanitsa butadiene kuchokera ku zigawo za C4 ndi isoprene kuchokera ku zigawo za C5, ndipo ingagwiritsidwenso ntchito ngati reagent yothandiza yolekanitsa zigawo zomwe sizili za hydrocarbon kuchokera ku paraffin. Ili ndi kusankha bwino kwa isophthalic acid ndi terephthalic acid kuti isungunuke: isophthalic acid imasungunuka kwambiri mu DMF kuposa terephthalic acid, kutulutsa solvent kumachitika mu dimethyl chemicalbook acid formamide. Kapena kusungunuka pang'ono, ziwirizi zimatha kulekanitsidwa. Mu mafakitale a petrochemical, DMF ingagwiritsidwe ntchito ngati choyamwa mpweya kuti ilekanitse ndikuyeretsa mpweya. Mu zochitika zachilengedwe, DMF siigwiritsidwa ntchito kwambiri ngati chosungunulira cha zomwe zimachitika, komanso ndi gawo lofunika kwambiri pakupanga zinthu zachilengedwe. Mumakampani opanga mankhwala ophera tizilombo, ingagwiritsidwe ntchito kupanga ciprofloxacin; Mu makampani opanga mankhwala, ingagwiritsidwe ntchito popanga ayodini, doxycycline, cortisone, vitamini B6, ayodini, quercetin, pyrantel, N-formylsarcomin, Tumorine, Methoxyfen mpiru, Bian nitrogen mpiru, cyclohexyl nitrosourea, furoflurouracil, hemostatic acid, bepartame, megestrol, bilevitamin, chlorpheniramine, ndi zina zotero. DMF imakhala ndi mphamvu yothandiza pakuchita kwa hydrogenation, dehydrogenation, dehydration ndi dehydrohalogenation, kotero kuti kutentha kwa reaction kumachepetsedwa ndipo kuyera kwa mankhwala kumawonjezeka.

4. Chosungunulira chopanda madzi. Chosungunulira cha vinyl ndi acetylene. Kuzindikira kwa Photometric. Yankho lokhazikika la gasi chromatographic (kutentha kwakukulu kogwira ntchito 50 ℃, chosungunulira ndi methanol), kulekanitsa Kusanthula kwa Chemicalbook C2 ~ C5 hydrocarbons, ndipo kumatha kulekanitsa normal, isobutene ndi cis, trans-2-butene. Kusanthula zotsalira za mankhwala ophera tizilombo. Kapangidwe ka Organic. Kapangidwe ka peptide. Kwa makampani ojambula zithunzi.

Kufotokozera kwa DMF

Pawiri	Kufotokozera
Maonekedwe	momveka bwino
General	≥99.9%
Methanol	≤0.001%
Mtundu (PT-CO), Hazen	≤5
Madzi,%	≤0.05%
Iron, mg/kg	≤0.05
Asidi (HCOOH)	≤0.001%
Chiyambi (DMA)	≤0.001%
PH(25℃, 20% yamadzi)	6.5-8.0
Kuyendetsa mphamvu (25℃, 20% yamadzi),μs/cm	≤2