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N,N-Dimethylacetamide_DMAC 127-19-5

Whakaahuatanga Poto:

Ingoa Hua: N, N-Dimethylacetamide/DMAC

CAS: 127-19-5

MF: C4H9NO

MW: 87.12

Kiato: 0.937 g/ml

Ira whakarewa: -20°C

Ira kohua: 164.5-166°C

Kiato: 0.937 g/mL i te 25 °C (marama)


Taipitopito Hua

Tohu Hua

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 Refactive n20/D 1.439(marama)
Kohikohiko 158 °F
Nga tikanga rokiroki Whakaorangia 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 haukini ngoikore
Paepae kakara (Paepa Hongi) 0.76ppm
Te wairewa whakakorikori
Mōkī 1 L/pounamu, 25 L/tamu, 200 L/tamu
Taonga Ka taea te konatunatua 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 polyurethane miro me te waihanga polyamide resins, ka whakamahia ano hoki hei whakarewa tangohanga tangohanga mo te wehe i te styrene mai i nga hautau C8, ka whakamahia nuitia i roto i nga kiriata polymer, paninga me nga rongoa, me etahi atu. 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 wairewa aprotic tino polar me te kakara haukinia paku, te wairewa kaha, me te whānuitanga o nga matū wairewa. He maha te micible ki te wai, ki nga pūhui kakara, ki te hākawa, ki te ketones, ki te waipiro, ki te ethers, 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 waahi kohua teitei, te waahi hiko 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, te vinyl pyridine me etahi atu copolymers me te whakarewa waikawa carboxylic Aromatic; i roto i nga tikanga o 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 halide waro me te cyanate ki te whakaputa 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. Te whakarewa tangohanga mo te wehe i te styrene mai i te hautanga C8, etc.


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