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38840

N,N-Dimethylacetamide

puriss. p.a., ≥99.5% (GC)

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About This Item

Linear Formula:
CH3CON(CH3)2
CAS Number:
127-19-5
Molecular Weight:
87.12
UNSPSC Code:
12352111
NACRES:
NA.21
PubChem Substance ID:
329755790
EC Number:
204-826-4
Beilstein/REAXYS Number:
1737614
MDL number:
MFCD00008686
Assay:
≥99.5% (GC)
Technique(s):
GC/GC: suitable
Bp:
164.5-166 °C (lit.)
Vapor pressure:
2 mmHg ( 25 °C), 4 mmHg ( 38 °C)
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vapor density

3 (vs air)

Quality Level

200

vapor pressure

2 mmHg ( 25 °C), 4 mmHg ( 38 °C)

grade

puriss. p.a.

assay

≥99.5% (GC)

form

liquid

autoignition temp.

914 °F

expl. lim.

1.8 %, 100 °F, 11.5 %, 160 °F

technique(s)

GC/GC: suitable

impurities

≤0.1% water

evapn. residue

≤0.005%

refractive index

n20/D 1.437

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.)

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

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 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.

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.

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pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B

Storage Class

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0326
BCCN6822
BCCN1979
BCCM4131
BCCM6596

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B Tosh et al.
Carbohydrate research, 327(3), 345-352 (2000-08-17)
Commercial rayon grade cellulose was dissolved in the lithium chloride-N,N-dimethylacetamide (LiCl-DMAc) solvent system and esterified with acetic anhydride using p-toluenesulfonyl chloride (p-TsCl) and pyridine as catalysts. The reaction temperature was varied from 28 to 70 degrees C and the time
Solutions of cellulose in N, N-dimethylacetamide/lithium chloride studied by light scattering methods.
Roder T, et al.
Polymer, 42(16), 6765-6773 (2001)
Solution studies of cellulose in lithium chloride and N,N-dimethylacetamide.
McCormick CL, et al.
Macromolecules, 18(12), 2394-2401 (1985)
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Global Trade Item Number

SKUGTIN
38840-1L-F04061837851254
38840-2.5L-F04061837851261