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185884 Sigma-Aldrich

N,N-Dimethylacetamide

ReagentPlus®, ≥99%

Synonym: DMAc

  • CAS Number 127-19-5

  • Linear Formula CH3CON(CH3)2

  • Molecular Weight 87.12

  •  Beilstein/REAXYS Number 1737614

  •  EC Number 204-826-4

  •  MDL number MFCD00008686

  •  eCl@ss 39031204

  •  PubChem Substance ID 329751718

  •  NACRES NA.21

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Properties

Related Categories ReagentPlus, ReagentPlus Solvent Grade Products, ACS and Reagent Grade Solvents, Amber Glass Bottles, Solvent Bottles,
Quality Level   100
vapor density   3 (vs air)
vapor pressure   2 mmHg ( 25 °C)
  4 mmHg ( 38 °C)
product line   ReagentPlus®
assay   ≥99%
form   liquid
autoignition temp.   914 °F
expl. lim.   1.8 %, 100 °F
  11.5 %, 160 °F
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.)
SMILES string   CN(C)C(C)=O
InChI   1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
InChI key   FXHOOIRPVKKKFG-UHFFFAOYSA-N

Description

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) has been employed as an organic solvent for the liquid-phase exfoliation of pristine graphene from bulk graphite.
It 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.

N,N-Dimethylacetamide may be used in the preparation of α-lithio N,N-dimethylacetamide. DMAc along with palladium chloride forms an efficient catalytic system for the oxidation of several internal olefins to carbonyl compounds without undergoing isomerization.

Packaging

2.5 L in glass bottle

500, 6×500 mL in glass bottle

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
WGK Germany 
WGK 2
RTECS 
AB7700000
Flash Point(F) 
147.2 °F - closed cup
Flash Point(C) 
64 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

Peer-Reviewed Papers
15

References

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