Description
Name:N,N-Dimethylacetamide
Other name:DMAC
CAS:127-19-5
EINECS:204-826-4
Molecular formula: C4H9NO
Molecular weight:87.12
InChI:InChI=1/C4H9NO/c1-4(6)5(2)3/h1-3H3
Melting point:-20℃
Density:0.937
Boiling point:164-166℃
Physico-chemical property:
Properties Colorless transparent liquid.
Solubility can be mixed with water, alcohol, ether, ester, benzene, trichloromethane and aromatic compounds and other organic solvents.
Application:
Used as raw materials for synthetic fibers and excellent polar solvents for organic synthesis; Used in organic synthesis, as a solvent, catalyst and paint remover;
DMAC is mainly used as a solvent for the spinning of synthetic fiber (acrylonitrile) and polyurethane and the synthesis of polyamide resin. It is also used for the extraction distillation solvent for the separation of phenylethylene from the C8 fraction, and is widely used in polymer films. Coatings and medicine, etc. At present, it is widely used in medicine and pesticides to synthesize antimicrobials and pesticides.
Can be used as a catalyst for reaction; Electrolytic solvent; Paint scavenger and a variety of crystalline solvent adducts and complexes.
Used as solvent, paint remover, catalyst and in organic synthesis.
Item | Grade standard | Result | ||
Superior Grade | First-rate Grade | Qualified Grade | / | |
DMAC % ≤ | 99.9 | 99.8 | 99.5 | 99.98 |
Chroma (hazen Pt-Co)≤ | 5 | 5 | 10 | 5 |
Moisture % ≥ | 0.01 | 0.03 | 0.03 | 0.0085 |
Acidity (as acetic acid) | 0.003 | 0.005 | 0.01 | 0.0012 |
Alkalinity (as dimethylamine) %≤ | 0.0001 | 0.0003 | 0.0005 | / |
Iron content mg/kg ≤ | 0.05 | 0.05 | 0.05 | / |
Conductivity us/cm | 0.05 | 0.100 | 0.200 | / |
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