185884

N,N-diméthylacétamide

ReagentPlus^®, ≥99%

• Synonyme(s) : DMAc
• Formule linéaire : CH₃CON(CH₃)₂
• Numéro CAS: 127-19-5
• Poids moléculaire : 87.12
• Numéro Beilstein : 1737614
• Numéro CE : 204-826-4
• Numéro MDL: MFCD00008686
• Code UNSPSC : 12352111
• eCl@ss : 39031204
• ID de substance PubChem : 329751718
• Nomenclature NACRES : NA.21

Propriétés

• Densité de vapeur: 3 (vs air)
• Pression de vapeur: 2 mmHg ( 25 °C); 4 mmHg ( 38 °C)
• Gamme de produits: ReagentPlus^®
• Pureté: ≥99%
• Forme: liquid
• Température d'inflammation spontanée: 914 °F
• Limite d'explosivité: 1.8 %, 100 °F; 11.5 %, 160 °F
• Indice de réfraction: n20/D 1.437 (lit.)
• pH: 4 (20 °C, 200 g/L)
• Point d'ébullition: 164.5-166 °C (lit.)
• Pf: −20 °C (lit.)
• Densité: 0.937 g/mL at 25 °C (lit.)
• Chaîne SMILES: CN(C)C(C)=O
• InChI: 1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
• Clé InChI: FXHOOIRPVKKKFG-UHFFFAOYSA-N

Description

Description générale

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.

Informations légales

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS08,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H312 + H332,H319,H360D
• Conseils de prudence: P202 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B
• Code de la classe de stockage: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): 147.2 °F - closed cup
• Point d'éclair (°C): 64 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter