539996

乙酸酐

99.5%

• 别名: Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
• 线性分子式: (CH₃CO)₂O
• CAS号: 108-24-7
• 分子量: 102.09
• Beilstein: 385737
• EC號碼: 203-564-8
• MDL號碼: MFCD00008705
• 分類程式碼代碼: 12352100
• PubChem物質ID: 24878429
• NACRES: NA.21

属性

• 蒸汽密度: 3.5 (vs air)
• 品質等級: 200
• 蒸汽壓力: 10 mmHg ( 36 °C); 4 mmHg ( 20 °C)
• 化驗: 99.5%
• 自燃溫度: 629 °F
• expl. lim.: 10.3 %
• 折射率: n20/D 1.390 (lit.)
• bp: 138-140 °C (lit.)
• mp: −73 °C (lit.)
• 溶解度: water: slightly soluble
• 密度: 1.08 g/mL (lit.)
• 官能基: anhydride; ester
• SMILES 字串: CC(=O)OC(C)=O
• InChI: 1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
• InChI 密鑰: WFDIJRYMOXRFFG-UHFFFAOYSA-N

说明

一般說明

Acetic anhydride is a carboxylic acid anhydride commonly used for the acetylation of amines and alcohols. It undergoes exothermic reaction on addition of water to form acetic acid. The photodecomposition of acetic anhydride has been studied over the temperature range from 60-160°C. The impact of treating pine wood with acetic anhydride has been investigated to evaluate the toughness of pine wood.

應用

Acetic anhydride has been used in the preparation of 6-dimethylamino-2,3-naphthalenedicarboxylic anhydride. It has also been used to generate acetate ions during high resolution chemical ionization mass spectrometry (CI-ToFMS) analysis.

安全信息

• 象形圖: GHS02,GHS06,GHS05
• 訊號詞: Danger
• 危險聲明: H226,H302,H314,H330
• 防範說明: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• 儲存類別代碼: 3 - Flammable liquids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 120.2 °F - closed cup
• 閃點（°C）: 49 °C - closed cup
• 個人防護裝備: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter