N, N-Dimethylacetamide_DMAC 127-19-5
Product Detail
| Cov khoom npe | N, N-Dimethylacetamide / DMAC |
| CAS | 127-19-5 ib |
| MF | C4H9 Nr |
| MW | 87.12 ib |
| Qhov ntom | 0.937 g / ml |
| Melting point | -20 ° C |
| Boiling point | 164.5-166 ° C |
| Qhov ntom | 0.937 g / mL ntawm 25 ° C (lit.) |
| Vapor Density | 3.89 (vs huab cua) |
| Vapor siab | 40 hli Hg (19.4 ° C) |
| Refractive Index | n20/D 1.439 (lit.) |
| Flash point | 158 ° F |
| Cia tej yam kev mob | Khaws hauv qab +30 ° C. |
| Solubility | > 1000g / l soluble |
| Acidity coefficient | (pKa) - 0.41 ± 0.70 (Predicted) |
| Daim ntawv | Ua kua |
| Xim | Colorless rau yellowish |
| kwv tij polarity | 6.3 |
| Tus nqi PH | 4 (200g / l, H2O, 20 ℃) |
| tsw | (Odor) Faint ammonia tsw |
| Cov ntxhiab tsw pib | (Tshuaj tsw qab) 0.76ppm |
| Dej solubility | miscible |
| Pob | 1L / lub raj mis, 25L / nruas, 200L / nruas |
| Khoom | Nws tuaj yeem sib xyaw nrog dej, cawv, ether, ester, benzene, chloroform, thiab cov tshuaj tsw qab. |
Synonyms
Acetic acid dimethylacetamide;N, N-Dimethylacetamide.
Muaj nuj nqi
DMAC feem ntau yog siv los ua cov kuab tshuaj rau cov hluavtaws fibers (acrylonitrile) thiab polyurethane spinning thiab hluavtaws polyamide resins, thiab tseem yog siv los ua cov kuab tshuaj distillation rau cais styrene los ntawm C8 feem, thiab yog siv dav hauv cov yeeb yaj kiab polymer, txheej thiab tshuaj, thiab lwm yam. . yam.Tam sim no, nws tau siv dav hauv tshuaj thiab tshuaj tua kab los ua ke cov tshuaj tua kab mob thiab tshuaj tua kab.Nws kuj tuaj yeem siv los ua cov tshuaj tiv thaiv rau cov tshuaj tiv thaiv, cov kuab tshuaj electrolytic, cov xim pleev xim, thiab ntau yam crystalline solvent adducts thiab complexes.
Kev piav qhia
N, N-Dimethylacetamide, tseem hu ua acetyldimethylamine, acetyldimethylamine, los yog DMAC luv luv, yog aprotic heev polar hnyav nrog ib tug me ntsis ammonia tsw, muaj zog solubility, thiab ntau yam ntawm soluble tshuaj.Nws yog dav miscible nrog dej, aromatic tebchaw, esters, ketones, cawv, ethers, benzene thiab chloroform, thiab lwm yam., thiab muaj peev xwm qhib compound molecules, yog li nws yog dav siv raws li ib tug hnyav thiab catalyst.Nyob rau hauv cov nqe lus ntawm hnyav, raws li ib tug hnyav nrog kub boiling point, siab flash point, siab thermal stability thiab tshuaj stability, nws yuav siv tau rau polyacrylonitrile spinning hnyav, hluavtaws cob thiab tej yam ntuj tso resin, yas formate, yas pyridine thiab lwm yam copolymer thiab Aromatic carboxylic. acid kuab tshuaj;Nyob rau hauv cov nqe lus ntawm catalyst, nws yuav siv tau nyob rau hauv cov txheej txheem ntawm cua sov urea los tsim cyanuric acid, cov tshuaj tiv thaiv ntawm halogenated alkyl thiab hlau cyanide los tsim nitrile, cov tshuaj tiv thaiv ntawm sodium acetylene thiab halogenated alkyl los tsim alkyl alkyne, thiab cov tshuaj tiv thaiv ntawm organic. halide thiab cyanate los tsim isocyanate.N, N-dimethylacetamide kuj tuaj yeem siv los ua cov kuab tshuaj rau cov kuab tshuaj electrolysis thiab cov duab thaij duab, cov xim pleev xim, cov khoom siv hluavtaws organic, tshuaj tua kab thiab cov khoom siv tshuaj.Extractive distillation hnyav rau cais styrene los ntawm C8 feem, thiab lwm yam.
