N,N-Dimethylacetamide_DMAC 127-19-5
Taipitopito Hua
| ingoa hua | N, N-Dimethylacetamide/DMAC |
| CAS | 127-19-5 |
| MF | C4H9NO |
| MW | 87.12 |
| Kiato | 0.937 g/ml |
| Te rewa | -20°C |
| Kohuatanga | 164.5-166°C |
| Kiato | 0.937 g/mL i te 25 °C (marama) |
| Kohu Kohu | 3.89 (me te hau) |
| Te pehanga kohu | 40 mm Hg (19.4 °C) |
| taupū mataaro | n20/D 1.439(marama) |
| Ira hiko | 158 °F |
| Nga tikanga rokiroki | Rokiroki ki raro +30°C. |
| Wairewa | >1000g/l wairewa |
| Te whakarea kawa | (pKa)-0.41±0.70(Te Matapae) |
| Puka | Waiwai |
| Tae | Taekore ki te kowhai |
| Polarity whanaunga | 6.3 |
| Uara PH | 4 (200g/l, H2O, 20 ℃) |
| Te kakara | (Kangi)Kangi haukinia ngohe |
| Paepae kakara | (Paepa Hongi) 0.76ppm |
| Te wairewa | whakakorikori |
| Mōkī | 1 L/pounamu, 25 L/tamu, 200 L/tamu |
| Taonga | Ka taea te whakauru ki te wai, te waipiro, te etera, te ester, te benzene, te chloroform, me nga pūhui kakara. |
Nga kupu taurite
waikawa acetic dimethylacetamide;N, N-Dimethylacetamide.
Mahi
Ko te DMAC te nuinga o te whakamahi hei whakarewa mo nga muka waihanga (acrylonitrile) me te miro polyurethane me te kapia polyamide waihanga, ka whakamahia ano hoki hei whakarewa mo te wehe i te styrene mai i nga hautau C8, a ka whakamahia i roto i nga kiriata polymer, paninga me nga rongoa, me era atu. .atanga.I tenei wa, e whakamahia nuitia ana i roto i te rongoa me te pesticide ki te whakahiato i nga paturopi me nga pesticides.Ka taea hoki te whakamahi hei whakakorikori mo te tauhohenga, he whakarewa hiko, he hamuwai peita, me nga momo taapiri whakarewa tioata me nga matatini.
Whakaahuatanga
Ko te N,N-Dimethylacetamide, e mohiotia ana ko acetyldimethylamine, acetyldimethylamine, DMAC ranei mo te poto, he whakarewa tino polar aprotic me te kakara haukinia paku, te wairewa kaha, me te whānuitanga o nga matū wairewa.He nui te micible ki te wai, ki nga pūhui kakara, ki te hākawa, ki te ketones, ki te waipiro, ki te etera, ki te benzene me te chloroform, me etahi atu, ka taea te whakahohe i nga ngota ngota, no reira ka whakamahia nuitia hei whakarewa me te whakakorikori.I roto i nga tikanga o te whakarewa, hei whakarewa me te ira koropuke teitei, te tohu uira teitei, te teitei o te waiariki me te pumau matū, ka taea te whakamahi mo te polyacrylonitrile miro whakarewa, te kapia waihanga me te kapia taiao, te vinyl formate, vinyl pyridine me etahi atu copolymers me te Aromatic carboxylic whakarewa waikawa;i runga i te whakakōkī, ka taea te whakamahi i roto i te tukanga o te whakawera Urea ki te whakaputa waikawa cyanuric, te tauhohenga o te alkyl halogenated me te cyanide whakarewa ki te whakaputa nitrile, te tauhohenga o te konutai acetylene me te halogenated alkyl ki te whakaputa alkyl alkyne, me te tauhohenga o te waro. te halide me te cyanate hei whakaputa i te isocyanate.Ka taea hoki te whakamahi i te N,N-dimethylacetamide hei whakarewa mo te whakarewa hiko me te whakapiri whakaahua, te tango peita, te whakahiato pararopi rawa, te pesticide me te rawa ho'oraa.Ko te whakarewa whakamarumaru tangohanga mo te wehe i te styrene mai i te hautanga C8, etc.
