N,N-Dimethylacetamide_DMAC 127-19-5
Cikakken Bayani
| Sunan samfur | N, N-Dimethylacetamide/DMAC |
| CAS | 127-19-5 |
| MF | C4H9N |
| MW | 87.12 |
| Yawan yawa | 0.937 g/ml |
| Wurin narkewa | -20°C |
| Wurin tafasa | 164.5-166 ° C |
| Yawan yawa | 0.937 g/ml a 25 °C (lit.) |
| Yawan Turi | 3.89 (Vs iska) |
| Turi matsa lamba | 40 mm Hg (19.4 ° C) |
| Indexididdigar refractive | n20/D 1.439 (lit.) |
| Ma'anar walƙiya | 158 °F |
| Yanayin ajiya | Adana a ƙasa + 30 ° C. |
| Solubility | > 1000g/l mai narkewa |
| Yawan acidity | (pKa) - 0.41 ± 0.70 (An annabta) |
| Siffar | Ruwa |
| Launi | Mara launi zuwa rawaya |
| Dangantaka polarity | 6.3 |
| PH darajar | 4 (200g/l, H2O, 20 ℃) |
| wari | (Odor)Rashin warin ammonia |
| Ƙofar ƙamshi | (Odor Threshold) 0.76ppm |
| Ruwa mai narkewa | miscible |
| Kunshin | 1 L/kwalba, 25L/Drum, 200L/Drum |
| Dukiya | Ana iya haɗa shi da ruwa, barasa, ether, ester, benzene, chloroform, da mahadi masu kamshi. |
Makamantu
Acetic acid dimethylacetamide;N, N-Dimethylacetamide.
Aiki
DMAC galibi ana amfani dashi azaman mai narkewa don fibers na roba (acrylonitrile) da polyurethane kadi da resin polyamide na roba, kuma ana amfani dashi azaman mai narkewa mai narkewa don raba styrene daga sassan C8, kuma ana amfani dashi ko'ina a cikin fina-finai na polymer, sutura da magunguna, da sauransu. al'amari.A halin yanzu, ana amfani da shi sosai a cikin magunguna da magungunan kashe qwari don haɗa maganin rigakafi da magungunan kashe qwari.Hakanan za'a iya amfani da shi azaman mai kara kuzari don amsawa, daɗaɗɗen electrolytic, mai lalata fenti, da nau'ikan nau'ikan ƙarfi na crystalline adducts da hadaddun.
Bayani
N, N-Dimethylacetamide, wanda kuma aka sani da acetyldimethylamine, acetyldimethylamine, ko DMAC a takaice, wani kaushi ne mai ƙarfi mai ƙarfi mai ƙarfi tare da ɗan ƙaramin ƙamshin ammonia, mai ƙarfi mai ƙarfi, da kewayon abubuwa masu narkewa.Yana da yadu miscible da ruwa, aromatic mahadi, esters, ketones, alcohols, ethers, benzene da chloroform, da dai sauransu, kuma zai iya kunna fili kwayoyin, don haka shi ne yadu amfani a matsayin ƙarfi da kuma kara kuzari.A cikin sharuddan sauran ƙarfi, kamar yadda sauran ƙarfi da high tafasar batu, high flash batu, high thermal kwanciyar hankali da kuma sinadaran kwanciyar hankali, shi za a iya amfani da polyacrylonitrile kadi sauran ƙarfi, roba guduro da na halitta guduro, vinyl formate, vinyl pyridine da sauran copolymers da Aromatic carboxylic. acid mai ƙarfi;A cikin sharuddan mai kara kuzari, ana iya amfani da shi a cikin tsarin dumama urea don samar da acid cyanuric, halayen halogenated alkyl da cyanide karfe don samar da nitrile, amsawar sodium acetylene da halogenated alkyl don samar da alkyl alkyne, da amsawar kwayoyin halitta. halide da cyanate don samar da isocyanate.N, N-dimethylacetamide kuma za a iya amfani da a matsayin sauran ƙarfi ga electrolysis sauran ƙarfi da kuma daukar hoto coupler, Paint cire, Organic kira albarkatun kasa, kwari da kuma Pharmaceutical albarkatun kasa.Extractive distillation sauran ƙarfi don raba styrene daga C8 juzu'i, da dai sauransu.
