Product Description
Dimethylacetamide is a colorless, transparent liquid that can be mixed with organic solvents such as water, alcohol and ether. It is a polar solvent. The dimethylacetamide is thermally stable and does not decompose even at the boiling point, can be refined by distillation, and is stable in aqueous solutions but causes hydrolysis in the presence of acids and bases. Due to the introduction of ethyl groups into the molecular structure, the boiling point of dimethylacetamide is 10°C higher than that of dimethylformamide (153°C).So it has better thermal stability and chemical stability than dimethylacetamide. In organic synthesis, dimethylacetamide is an excellent catalyst for speeding up reactions such as cyclization, halogenation, cyanidation, alkylation and dehydrogenation, as well as increasing the yield of major products.
|
Chinese name |
二甲基乙酰胺 |
English name |
Dimethylacetamide |
|
Abbreviation |
DMAC |
CAS no. |
127-19-5 |
|
Molecular formula |
C4H9NO |
Relative molecular weight |
87.12 |
|
Melting point |
-20 |
The boiling point |
166.1 |
|
Flash point |
77 |
The moisture content |
/ |
|
Viscosity |
0.92 |
Appearance |
Colorless liquid |
|
Refractive index |
1.4384 |
Relative density |
0.9366 |
|
Specification Index |
Chemical Fibre Grade |
Pharmaceutical Grade |
Industrial Grade |
||
|
Chromatogram content |
(%)≥ |
99.90 |
99.85 |
99.60 |
|
|
Water content |
PPm ≤ |
100 |
300 |
300 |
|
|
ACID content |
(as HAC) |
PPm ≤ |
80 |
|
|
|
Alkali content |
(as DMA) |
PPm ≤ |
5 |
10 |
10 |
|
Iron content |
PPm ≤ |
0.05 |
/ |
/ |
|
|
Electrical conductivity |
(20℃) |
μs/cm≤ |
0.5 |
/ |
/ |
|
PH (200g/L,25℃) |
5.5-7.0 |
4.5-7.0 |
5.5-7.0 |
||
|
Colour and Lustre |
Pt-Co≤ |
5 |
10 |
10 |
|
Product Purpose
1、DMAC is mainly used as a solvent for the spinning of synthetic fibers (acrylonitrile) and polyurethane and for the synthesis of polyamide resins. It is also used as an extractive distillation solvent for the separation of styrene from C8 fraction and widely used in polymer films Paint and medicine and so on. At present, it is widely used in medicine and pesticide to synthesize antibiotics and pesticide insecticides.
2、Can be used as a reaction catalyst; electrolytic solvent; paint scavenger and a variety of crystalline solvent adducts and complexes.
3、Used as solvent, paint remover, catalyst and for organic synthesis.
Packing Specification
190kg*80drums, 15.2ton/FCL;
22ton/Isotank.
COA OF DMAC
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