Dimethyl Acetamide /Dimethylacetamide/DMAC CAS 127-19-5
Dimethylacetamide (DMAc or DMA) is the organic compound with the formula CH3C(O)N(CH3)2. This colorless, water-miscible, high boiling liquid is commonly used as a polar solvent in organic synthesis. DMA is miscible with most other solvents, although it is poorly soluble in aliphatic hydrocarbons.
| Specifications of dimethylacetamide | Chemical fiber grade | Medical grade | Industrial grade | ||
| Chromatographic 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 | / | / | |
| Conductivity | (20ºC) | μs/cm≤ | 0.5 | / | / |
| PH value (200g / L, 25 ºC) | 5.5-7.0 | 4.5-7.0 | 5.5-7.0 | ||
| Color and lustre | Pt-Co≤ | 5 | 10 | 10 | |
1. It is used as a raw material for synthetic fibers and an excellent polar solvent for organic synthesis; for organic synthesis, it is also used as a solvent, catalyst and paint remover;
2. DMAC is mainly used as a solvent for synthetic fibers (acrylonitrile) and polyurethane spinning and synthetic polyamide resins, and is also used as an extractive distillation solvent for separating styrene from C8 fractions, and is widely used in polymer films; coatings and pharmaceuticals etc. At present, it is widely used in medicine and pesticide to synthesize antibiotics and pesticides.
3. Can be used as catalyst for reaction; electrolytic solvent; paint scavenger and various crystalline solvent adducts and complexes.
4. Used as solvent, paint remover, catalyst and for organic synthesis.
