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Merck
모든 사진(2)

주요 문서

185884

Sigma-Aldrich

N,N-Dimethylacetamide

ReagentPlus®, ≥99%

동의어(들):

DMAc

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About This Item

Linear Formula:
CH3CON(CH3)2
CAS Number:
Molecular Weight:
87.12
Beilstein:
1737614
EC Number:
MDL number:
UNSPSC 코드:
12352111
eCl@ss:
39031204
PubChem Substance ID:
NACRES:
NA.21
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vapor density

3 (vs air)

Quality Level

vapor pressure

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

제품 라인

ReagentPlus®

분석

≥99%

양식

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

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일반 설명

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]

애플리케이션

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]

법적 정보

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

픽토그램

Health hazardExclamation mark

신호어

Danger

유해 및 위험 성명서

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

개인 보호 장비

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

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특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

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)
Isolation and reactions of. alpha.-lithio N, N-dimethylacetamide.
Woodbury RP and Rathke MW
The Journal of Organic Chemistry, 42(10), 1688-1690 (1977)
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)
Solution studies of cellulose in lithium chloride and N,N-dimethylacetamide.
McCormick CL, et al.
Macromolecules, 18(12), 2394-2401 (1985)

질문

1–2 / 2 질문  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 답변
    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 답변
    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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