N, N-Dimethylacetamide CAS: 127-19-5
Chiyambi cha malonda
N, N-Dimethylacetamide CAS: 127-19-5
Katundu wa mankhwala: Mankhwalawa ndi ofanana kwambiri ndi N,N-dimethylformamide, ndipo ndi oyimira amide solvent. Ngati palibe asidi kapena alkali, sichidzawola ikatenthedwa mpaka kuwira pansi pa kukakamizidwa kwabwinobwino, kotero imatha kusungunulidwa pansi pa kukakamizidwa kwabwinobwino. Mlingo wa hydrolysis ndi wodekha kwambiri. Pamene N, N-dimethylacetamide yomwe ili ndi 5% ya madzi imatenthedwa pa 95 ° C kwa maola 140, 0.02% yokha ndi hydrolyzed. Komabe, pamaso pa asidi ndi alkali, kuchuluka kwa hydrolysis kumawonjezeka. Saponification imachitika pamene kutentha pamaso pa alkali wamphamvu.
Ndimadzimadzi owoneka bwino kwambiri.
Munda wofunsira
1. Mankhwala apakati a dimethylacetamide ndi ofunika kwambiri pakupanga mankhwala ndipo amagwiritsidwa ntchito kwambiri popanga amoxicillin, cephalosporins ndi mankhwala ena. Monga zosungunulira kapena cocatalyst, dimethylacetamide imatha kupititsa patsogolo malonda ndi zokolola poyerekeza ndi zosungunulira zachikhalidwe. Mu 2000, kufunika kwa dimethylacetamide mumakampani opanga mankhwala kunali pafupifupi 6kt. Kufunika kwa dimethylacetamide mu 2006 kunali pafupifupi 9.6kt. 2. Kupanga zitsulo za Acrylic Popanga acrylic fiber, ena amagwiritsa ntchito njira ya dimethylacetamide. Pakali pano, zoweta akiliriki CHIKWANGWANI kupanga Chemicalbook makamaka zikuphatikizapo sodium thiocyanate awiri masitepe njira, dimethylformamide sitepe imodzi ndi dimethylacetamide organic yonyowa njira malinga ndi zosungunulira. Kuchokera pamawonekedwe a machitidwe ndi zida, kugwiritsa ntchito zinthu, kukhudzidwa kwa chilengedwe, mtundu wazinthu, Zinthu zambiri monga momwe zimagwirira ntchito pambuyo pokonza, kuchuluka kwa malo ndi zochitika zachitukuko zakunja zawonjezera kafukufuku wogwiritsa ntchito ndikupititsa patsogolo ntchito. Dimethylacetamide idagwiritsidwa ntchito ngati kufananitsa kwathunthu. Sodium thiocyanate njira ziwiri ndi dimethylacetamide organic wet njira anagwiritsidwa ntchito. Chitukuko chodalirika kwambiri. Pakadali pano, makina ambiri a acrylic fiber ku China amagwiritsa ntchito njira zonyowa pogwiritsa ntchito dimethylacetamide ngati zosungunulira.
Kufotokozera za zomangamanga
N, N-dimethylacetamide
CAS: 127-19-5
Kachulukidwe 0.9±0.1 g/cm3
Malo otentha 166.1±0.0 °C pa 760 mmHg
Malo osungunuka -20 °C
Molecular formula C4H9NO
Kulemera kwa mamolekyu 87.120
Kung'anima kwa 70.0±0.0 °C
Nambala ya CB: CB31073068
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