154806

N,N-二甲基乙酰胺

spectrophotometric grade, ≥99%

• 線性公式: CH₃CON(CH₃)₂
• CAS號碼: 127-19-5
• 分子量：: 87.12
• Beilstein: 1737614
• EC號碼: 204-826-4
• MDL號碼: MFCD00008686
• 分類程式碼代碼: 12352111
• PubChem物質ID: 329750896
• NACRES: NA.21

屬性

• 等級: spectrophotometric grade
• 蒸汽密度: 3 (vs air)
• 蒸汽壓力: 2 mmHg ( 25 °C); 4 mmHg ( 38 °C)
• 化驗: ≥99%
• 形狀: liquid
• 自燃溫度: 914 °F
• expl. lim.: 1.8 %, 100 °F; 11.5 %, 160 °F
• 技術: UV/Vis spectroscopy: suitable
• 雜質: <0.050% water
• 蒸發殘留物: <0.001%
• 折射率: n20/D 1.437 (lit.)
• pH值: 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.)
• &lambda ；: H₂O reference
• 紫外吸收: λ: 270 nm A_max: 1.00; λ: 280 nm A_max: 0.30; λ: 290 nm A_max: 0.15; λ: 310 nm A_max: 0.05; λ: 320 nm A_max: 0.03; λ: 360-400 nm A_max: 0.01
• SMILES 字串: CN(C)C(C)=O
• InChI: 1S/C4H9NO/c1-4(6)5(2)3/h1-3H3
• InChI 密鑰: FXHOOIRPVKKKFG-UHFFFAOYSA-N

描述

一般說明

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.

應用

N,N-Dimethylacetamide have been used as solvent in the preparation of nanocomposite materials, comprising of cellulose and hydroxyapatite, using microwave-assisted method. 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.

安全資訊

• 象形圖: GHS08,GHS07
• 訊號詞: Danger
• 危險聲明: H312 + H332,H319,H360D
• 防範說明: P202 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• 危險分類: Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Repr. 1B
• 儲存類別代碼: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: 147.2 °F - closed cup
• 閃點（°C）: 64 °C - closed cup