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N,N-Dimethylacetamide CAS: 127-19-5

N,N-Dimethylacetamide CAS: 127-19-5 Isithombe Esifakiwe
  • N,N-Dimethylacetamide CAS: 127-19-5
  • N,N-Dimethylacetamide CAS: 127-19-5
  • N,N-Dimethylacetamide CAS: 127-19-5

incazelo emfushane:

N,N-Dimethylacetamide CAS: 127-19-5
Izakhiwo zamakhemikhali: Izakhiwo zamakhemikhali zifana kakhulu ne-N,N-dimethylformamide, futhi iyi-amide solvent emele. Uma ingekho i-asidi noma i-alkali, ngeke ibole lapho ishisa ukuze ibilise ngaphansi kwengcindezi evamile, ngakho-ke ingachithwa ngaphansi kwengcindezi evamile. Izinga le-hydrolysis lihamba kancane kakhulu. Uma i-N,N-dimethylacetamide equkethe u-5% wamanzi ishiselwa ku-95°C amahora angu-140, i-0.02% kuphela i-hydrolyzed. Kodwa-ke, lapho kukhona i-asidi ne-alkali, izinga le-hydrolysis liyakhula. I-saponification yenzeka lapho ishiswa phambi kwe-alkali enamandla.
isicelo
1. I-dimethylacetamide ephakathi kwezemithi iyisisetshenziswa esibalulekile semithi futhi isetshenziswa kabanzi ekukhiqizeni i-amoxicillin, i-cephalosporins nezinye izidakamizwa. Njenge-solvent noma i-cocatalyst, i-dimethylacetamide ingathuthukisa ikhwalithi yomkhiqizo kanye nesivuno uma iqhathaniswa nezincibilikisi zemvelo zendabuko. Ngo-2000, isidingo se-dimethylacetamide embonini yezemithi sasilinganiselwa ku-6kt. Isidingo se-dimethylacetamide ngo-2006 sasicishe sibe ngu-9.6kt. 2. Ukukhiqizwa kwe-Acrylic fiber Ekukhiqizeni i-acrylic fiber, abanye basebenzisa umzila we-dimethylacetamide. Njengamanje, ukukhiqizwa kwefayibha ye-acrylic yasekhaya i-Chemicalbook ikakhulukazi ihlanganisa indlela ye-sodium thiocyanate enezinyathelo ezimbili, indlela yesinyathelo esisodwa se-dimethylformamide kanye nendlela emanzi ye-dimethylacetamide ye-organic ngokusho kwezincibilikisi. Ngokombono wenqubo kanye nezici zemishini, ukusetshenziswa kwezinto ezibonakalayo, umthelela wendawo, ikhwalithi yomkhiqizo, Izinto eziningi ezifana nokusebenza kwangemva kokucubungula, izinga lendawo kanye nezimo zokuthuthukiswa kwamanye amazwe ziye zandisa ucwaningo lwezicelo kanye nemizamo yokukhuthaza. I-Dimethylacetamide isetshenziswe njengesiqhathaniso esiphelele. I-sodium thiocyanate indlela yezinyathelo ezimbili kanye ne-dimethylacetamide organic wet method yasetshenziswa. Intuthuko ethembisa kakhulu. Njengamanje, ukufakwa okuningi kwe-acrylic fiber e-China kusebenzisa izinqubo ezimanzi zisebenzisa i-dimethylacetamide njengesixazululi.


  • Igama:N,N-Dimethylacetamide CAS: 127-19-5
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    Isingeniso somkhiqizo

    N,N-Dimethylacetamide CAS: 127-19-5
    Izakhiwo zamakhemikhali: Izakhiwo zamakhemikhali zifana kakhulu ne-N,N-dimethylformamide, futhi iyi-amide solvent emele. Uma ingekho i-asidi noma i-alkali, ngeke ibole lapho ishisa ukuze ibilise ngaphansi kwengcindezi evamile, ngakho-ke ingachithwa ngaphansi kwengcindezi evamile. Izinga le-hydrolysis lihamba kancane kakhulu. Uma i-N,N-dimethylacetamide equkethe u-5% wamanzi ishiselwa ku-95°C amahora angu-140, i-0.02% kuphela i-hydrolyzed. Kodwa-ke, lapho kukhona i-asidi ne-alkali, izinga le-hydrolysis liyakhula. I-saponification yenzeka lapho ishiswa phambi kwe-alkali enamandla.

    Iwuketshezi olubonisa ngale lwezinga eliphezulu.

    Inkambu yohlelo lokusebenza

    1. I-dimethylacetamide ephakathi kwezemithi iyisisetshenziswa esibalulekile semithi futhi isetshenziswa kabanzi ekukhiqizeni i-amoxicillin, i-cephalosporins nezinye izidakamizwa. Njenge-solvent noma i-cocatalyst, i-dimethylacetamide ingathuthukisa ikhwalithi yomkhiqizo kanye nesivuno uma iqhathaniswa nezincibilikisi zemvelo zendabuko. Ngo-2000, isidingo se-dimethylacetamide embonini yezemithi sasilinganiselwa ku-6kt. Isidingo se-dimethylacetamide ngo-2006 sasicishe sibe ngu-9.6kt. 2. Ukukhiqizwa kwe-Acrylic fiber Ekukhiqizeni i-acrylic fiber, abanye basebenzisa umzila we-dimethylacetamide. Njengamanje, ukukhiqizwa kwefayibha ye-acrylic yasekhaya i-Chemicalbook ikakhulukazi ihlanganisa indlela ye-sodium thiocyanate enezinyathelo ezimbili, indlela yesinyathelo esisodwa se-dimethylformamide kanye nendlela emanzi ye-dimethylacetamide ye-organic ngokusho kwezincibilikisi. Ngokombono wenqubo kanye nezici zemishini, ukusetshenziswa kwezinto ezibonakalayo, umthelela wendawo, ikhwalithi yomkhiqizo, Izinto eziningi ezifana nokusebenza kwangemva kokucubungula, izinga lendawo kanye nezimo zokuthuthukiswa kwamanye amazwe ziye zandisa ucwaningo lwezicelo kanye nemizamo yokukhuthaza. I-Dimethylacetamide isetshenziswe njengesiqhathaniso esiphelele. I-sodium thiocyanate indlela yezinyathelo ezimbili kanye ne-dimethylacetamide organic wet method yasetshenziswa. Intuthuko ethembisa kakhulu. Njengamanje, ukufakwa okuningi kwe-acrylic fiber e-China kusebenzisa izinqubo ezimanzi zisebenzisa i-dimethylacetamide njengesixazululi.

    Incazelo yokwakha

    N,N-dimethylacetamide

    CAS: 127-19-5

    Ukuminyana 0.9±0.1 g/cm3

    Iphoyinti lokubilisa 166.1±0.0 °C ku-760 mmHg
    Iphuzu lokuncibilika -20 °C
    Ifomula ye-molecular C4H9NO
    Isisindo se-molecule 87.120
    Iphoyinti le-Flash 70.0±0.0 °C

    Inombolo ye-CB: CB31073068

     

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