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185884

Sigma-Aldrich

N,N-Diméthylacétamide

ReagentPlus®, ≥99%

Synonyme(s) :

DMAc

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About This Item

Formule linéaire :
CH3CON(CH3)2
Numéro CAS:
127-19-5
Poids moléculaire :
87.12
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
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Densité de vapeur

3 (vs air)

Pression de vapeur

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

Gamme de produits

ReagentPlus®

Essai

≥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)

pb

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

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Catégories apparentées

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.[1]

Application

N,N-Dimethylacetamide (DMAc) has been employed as an organic solvent for the liquid-phase exfoliation of pristine graphene from bulk graphite.[2]
It may be used to compose the solvent system along with lithium chloride (LiCl) for the dissolution of commercial rayon grade cellulose.[3] DMAc/LiCl solvent mixtures have been used for the preparation of chitin, cellulose and polyimide fibers and films.[4]
N,N-Dimethylacetamide may be used in the preparation of α-lithio N,N-dimethylacetamide.[5] DMAc along with palladium chloride forms an efficient catalytic system for the oxidation of several internal olefins to carbonyl compounds without undergoing isomerization.[6]

Informations légales

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

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H312 + H332,H319,H360D

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

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Certificats d'analyse (COA)

Lot/Batch Number
SHBS4539
SHBR9660
BCCM4131
BCCM6596
BCCL2559

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Isolation and reactions of. alpha.-lithio N, N-dimethylacetamide.
Woodbury RP and Rathke MW
The Journal of Organic Chemistry, 42(10), 1688-1690 (1977)
Wacker-Type Oxidation of Internal Olefins Using a PdCl2/N,N-Dimethylacetamide Catalyst System under Copper-Free Reaction Conditions.
Mitsudome T, et al.
Angewandte Chemie (International Edition in English), 49(7), 1238-1240 (2010)
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
Transparent conductive electrodes.
YK and Chen J.
Materials for Flexible and Printed Electronics , 1(840), 6-6 (2014)
Solutions of cellulose in N, N-dimethylacetamide/lithium chloride studied by light scattering methods.
Roder T, et al.
Polymer, 42(16), 6765-6773 (2001)
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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