N,N-二甲基乙酰胺，N,N-Dimethylacetamide [DMAc]；spectrophotometric grade, ≥99%

图片 N,N-二甲基乙酰胺，N,N-Dimethylacetamide [DMAc]；spectrophotometric grade, ≥99%
线性分子式: CH3CON(CH3)2 CAS号: 127-19-5 分子量: 87.12 Beilstein: 1737614 EC 号: 204-826-4 MDL编号: MFCD00008686 PubChem化学物质编号: 329750896 NACRES: NA.21
制造商品牌: 西格玛 Sigma-Aldrich
货号（SKU）: 154806
CAS号: 127-19-5
MDL号: MFCD00008686
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说明

一般描述

N,N-Dimethylacetamide (DMAc) is widely used to compose solvent mixtures for cellulose. Static and dynamic light scattering studies of cellulose dissolved in varying concentrations of DMAc/LiCl mixtures have been reported.[1]
 

应用

N,N-Dimethylacetamide have been used as solvent in the preparation of nanocomposite materials, comprising of cellulose and hydroxyapatite, using microwave-assisted method.[2] It has also been used as a solvent for poly(ether imides), which can be used to coat magnesium alloys, in order to prevent corrosion.[3]
 
 

属性

等级

spectrophotometric grade

质量水平

100

蒸汽密度

3 (vs air)

蒸汽压

2 mmHg ( 25 °C)
4 mmHg ( 38 °C)

测定

≥99%

形式

liquid

自燃温度

914 °F

expl. lim.

1.8 %, 100 °F
11.5 %, 160 °F

technique(s)

UV/Vis spectroscopy: suitable

杂质

<0.050% water

蒸发残留物

<0.001%

折射率

n20/D 1.437 (lit.)

pH值（酸碱度）

4 (20 °C, 200 g/L)

bp

164.5-166 °C (lit.)

mp

−20 °C (lit.)

密度

0.937 g/mL at 25 °C (lit.)

λ

H2O reference

紫外吸收

λ: 270 nm Amax: 1.00
λ: 280 nm Amax: 0.30
λ: 290 nm Amax: 0.15
λ: 310 nm Amax: 0.05
λ: 320 nm Amax: 0.03
λ: 360-400 nm Amax: 0.01

SMILES string

CN(C)C(C)=O

InChI

1S/C4H9NO/c1-4(6)5(2)3/h1-3H3

InChI key

FXHOOIRPVKKKFG-UHFFFAOYSA-N

 

安全信息

象形图

Exclamation markHealth hazard
GHS07,GHS08

警示用语：

Danger

危险分类

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

储存分类代码

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 2

闪点(F)

147.2 °F - closed cup

闪点(C)

64 °C - closed cup

个人防护装备

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 50 | 欧洲Eur. ≥ 12 | 東京Tokyo ≥ 20 | 香港与北京 ≥ 50
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