Description
N,N-Dimethylacetamide, spectrophotometric grade, ≥99%
Linear Formula:
CH3CON(CH3)2
CAS Number:
127-19-5
Molecular Weight:
87.12
Beilstein:
1737614
EC Number:
204-826-4
MDL number:
MFCD00008686
PubChem Substance ID:
329750896
NACRES:
NA.21
PROPERTIES
grade
spectrophotometric grade
vapor density
3 (vs air)
vapor pressure
2 mmHg ( 25 °C)
4 mmHg ( 38 °C)
Assay
≥99%
form
liquid
autoignition temp.
914 °F
expl. lim.
1.8 %, 100 °F
11.5 %, 160 °F
technique(s)
UV/Vis spectroscopy: suitable
impurities
<0.050% water
evapn. residue
<0.001%
refractive index
n20/D 1.437 (lit.)
pH
4 (20 °C, 200 g/L)
bp
164.5-166 °C (lit.)
mp
−20 °C (lit.)
density
0.937 g/mL at 25 °C (lit.)
λ
H2O reference
UV absorption
λ: 270 nm Amax: 1.00
λ: 280 nm Amax: 0.30
λ: 290 nm Amax: 0.15
λ: 310 nm Amax: 0.05
λ: 320 nm Amax: 0.03
λ: 360-400 nm Amax: 0.01
SMILES string
CN(C)C(C)=O
InChI
1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
InChI key
FXHOOIRPVKKKFG-UHFFFAOYSA-N
General description
N,N-Dimethylacetamide (DMAc) is widely used to compose solvent mixtures for cellulose. Static and dynamic light scattering studies of cellulose dissolved in varying concentrations of DMAc/LiCl mixtures have been reported.[1]
Application
N,N-Dimethylacetamide have been used as solvent in the preparation of nanocomposite materials, comprising of cellulose and hydroxyapatite, using microwave-assisted method.[2] It has also been used as a solvent for poly(ether imides), which can be used to coat magnesium alloys, in order to prevent corrosion.[3]
SAFETY INFORMATION
Pictograms
GHS07,GHS08
Signal Word
Danger
Hazard Statements
H312 + H332 - H319 - H360D
Precautionary Statements
P202 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B
Storage Class Code
6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
WGK
WGK 2
Flash Point(F)
147.2 °F - closed cup
Flash Point(C)
64 °C - closed cup