33209-M

乙酸

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8%

• 别名: 冰乙酸
• 线性分子式: CH₃CO₂H
• CAS号: 64-19-7
• 分子量: 60.05
• Beilstein: 506007
• EC 号: 200-580-7
• MDL编号: MFCD00036152
• UNSPSC代码: 12352106
• PubChem化学物质编号: 329754470
• NACRES: NA.21

属性

• 等级: ACS reagent; puriss. p.a.
• 质量水平: 100
• Agency: USP/NF; reag. ISO; reag. Ph. Eur.
• 蒸汽密度: 2.07 (vs air)
• 方案: ≥99.8%
• 表单: liquid
• 自燃温度: 800 °F
• expl. lim.: 16 %, 92 °F; 4 %, 59 °F
• 技术: mass spectrometry (MS): suitable
• 杂质: ≤0.0002% acetaldehyde; ≤0.0005% non-volatile matter; ≤0.002% KMnO₄ red. matter (as HCOOH); ≤0.01% acetic anhydride (GC); ≤0.2% water (Karl Fischer)
• 颜色: APHA: ≤10
• 折射率: n20/D 1.371 (lit.)
• pH值（酸碱度）: 2.4 (60.05 g/L)
• 沸点: 117-118 °C (lit.)
• mp: 16.2 °C (lit.)
• 转变温度: freezing point ≥16.3 °C
• 密度: 1.04 g/mL at 25 °C (lit.)
• 痕量阴离子: chloride (Cl^-): ≤0.5 mg/kg; phosphate (PO₄^3-): ≤0.5 mg/kg; sulfate (SO₄^2-): ≤0.5 mg/kg
• 痕量阳离子: Ag: ≤0.01 mg/kg; Al: ≤0.05 mg/kg; As: ≤0.01 mg/kg; Ba: ≤0.01 mg/kg; Be: ≤0.01 mg/kg; Bi: ≤0.1 mg/kg; Ca: ≤0.2 mg/kg; Cd: ≤0.02 mg/kg; Co: ≤0.01 mg/kg; Cr: ≤0.05 mg/kg; Cu: ≤0.01 mg/kg; Fe: ≤0.2 mg/kg; Ge: ≤0.05 mg/kg; K: ≤0.1 mg/kg; Li: ≤0.01 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.01 mg/kg; Mo: ≤0.02 mg/kg; Na: ≤0.5 mg/kg; Ni: ≤0.05 mg/kg; Pb: ≤0.02 mg/kg; Sr: ≤0.01 mg/kg; Ti: ≤0.01 mg/kg; Tl: ≤0.05 mg/kg; V: ≤0.01 mg/kg; Zn: ≤0.05 mg/kg; Zr: ≤0.1 mg/kg
• SMILES字符串: [F2C(F2C)13F3C]C(O)=O
• 适用性: passes test for indifference to chromic acid
• InChI: 1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)
• InChI key: QTBSBXVTEAMEQO-UHFFFAOYSA-N

说明

一般描述

Acetic acid is an organic carboxylic acid. It is a hygroscopic liquid having a pungent odor. Its anhydrous form is commonly referred as glacial acetic acid. It forms dimers linked by hydrogen bonds in solution and gaseous phases. It is weakly acidic in nature.[1]

应用

Acetic acid has been used in the analysis of synthetic peptides by electron transfer dissociation (ETD) tandem mass spectrometry (MS/MS).[2] It may be used in the preparation of peroxyacetic acid (disinfectant), via reaction with perhydrol (30% hydrogen peroxide).[1]

for use as solvent for perchloric acid titration

包装

PE 瓶包装；也提供玻璃瓶包装（材料号以 *-GL 结尾）

安全信息

• 象形图: GHS02,GHS05
• 警示用语：: Danger
• 危险声明: H226,H314
• 预防措施声明: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• 危险分类: Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A
• 储存分类代码: 3 - Flammable liquids
• WGK: WGK 1
• 闪点(°F): 104.0 °F - closed cup
• 闪点(°C): 40 °C - closed cup