N,N-Dimethylacetamide
SIGALD/38840 - puriss. p.a., ≥99.5% (GC)
CAS Number: 127-19-5
Empirical Formula (Hill Notation): C4H9NO
Molecular Weight: 87.12
EC Number: 204-826-4
MDL Number: MFCD00008686
Linear Formula: CH3CON(CH3)2
Product Type: Chemical
| assay | ≥99.5% (GC) |
| autoignition temp. | 914 °F |
| bp | 164.5-166 °C (lit.) |
| cation traces | Al: ≤0.5 mg/kg |
| Ba: ≤0.1 mg/kg | |
| Bi: ≤0.1 mg/kg | |
| Ca: ≤0.5 mg/kg | |
| Cd: ≤0.05 mg/kg | |
| Co: ≤0.02 mg/kg | |
| Cr: ≤0.02 mg/kg | |
| Cu: ≤0.02 mg/kg | |
| Fe: ≤0.1 mg/kg | |
| K: ≤0.5 mg/kg | |
| Li: ≤0.1 mg/kg | |
| Mg: ≤0.1 mg/kg | |
| Mn: ≤0.02 mg/kg | |
| Mo: ≤0.1 mg/kg | |
| Na: ≤0.5 mg/kg | |
| Ni: ≤0.02 mg/kg | |
| Pb: ≤0.1 mg/kg | |
| Sr: ≤0.1 mg/kg | |
| Zn: ≤0.1 mg/kg | |
| density | 0.937 g/mL at 25 °C (lit.) |
| evapn. residue | ≤0.005% |
| expl. lim. | 1.8 %, 100 °F |
| 11.5 %, 160 °F | |
| form | liquid |
| grade | puriss. p.a. |
| impurities | ≤0.1% water |
| InChI | 1S/C4H9NO/c1-4(6)5(2)3/h1 |
| InChI key | FXHOOIRPVKKKFG-UHFFFAOYSA |
| mp | −20 °C (lit.) |
| pH | 4 (20 °C, 200 g/L) |
| Quality Level | 200  |
| refractive index | n |
| n |
|
| SMILES string | CN(C)C(C)=O |
| technique(s) | GC/GC: suitable |
| vapor density | 3 (vs air) |
| vapor pressure | 2 mmHg ( 25 °C) |
| 4 mmHg ( 38 °C) |
| Application: | N,N-Dimethylacetamide (DMAc) may be used to compose the solvent system along with lithium chloride (LiCl) for the dissolution of commercial rayon grade cellulose. DMAc/LiCl solvent mixtures have been used for the preparation of chitin, cellulose and polyimide fibers and films. |
| General description: | N,N-Dimethylacetamide (DMAc) is widely used to compose the solvent mixtures for cellulose. Static and dynamic light scattering studies of the cellulose dissolved in varying concentrations of DMAc/LiCl mixtures have been reported. |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H312 + H332 - H319 - H360D |
| Precautionary statements | P201 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | T |
| Risk Statements | 61-20/21-36 |
| Safety Statements | 53-45 |
| WGK Germany | WGK 2 |
| Flash Point(F) | 147.2 °F - closed cup |
| Flash Point(C) | 64 °C - closed cup |
| Purity | ≥99.5% (GC) |
| bp | 164.5-166 °C (lit.) |
| mp | −20 °C (lit.) |
| Density | 0.937 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352111 |