443468

2-丁酮

ACS reagent, ≥99.0%

• 别名: MEK, 乙基甲基酮, 甲基乙基酮
• 线性分子式: C₂H₅COCH₃
• CAS号: 78-93-3
• 分子量: 72.11
• Beilstein: 741880
• EC 号: 201-159-0
• MDL编号: MFCD00011648
• UNSPSC代码: 12190000

属性

• 等级: ACS reagent
• 蒸汽密度: 2.49 (vs air)
• 蒸汽压: 71 mmHg ( 20 °C)
• 方案: ≥99.0%
• 自燃温度: 960 °F
• expl. lim.: 10.1 %
• 杂质: ≤0.0005 meq/g Titr. acid; ≤0.20% water
• 蒸发残留物: ≤0.0025%
• 颜色: APHA: ≤15
• 折射率: n20/D 1.379 (lit.)
• 沸点: 80 °C (lit.)
• mp: −87 °C (lit.)
• 密度: 0.805 g/mL at 25 °C (lit.)
• SMILES字符串: CC(CC)=O
• InChI: 1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3
• InChI key: ZWEHNKRNPOVVGH-UHFFFAOYSA-N

说明

一般描述

2-Butanone (Methyl ethyl ketone, MEK), an aliphatic ketone, is considered as aprotic and protophilic solvent. The solvent composition plays an important role in the rate of liquid-phase catalytic hydrogenation of MEK to 2-butanol. The rate constant for the reaction of hydroxyl radicals with MEK has been determined and expressed in Arrhenius form as Κ_C2H5COCH3+OH = 6.35*1013 exp(-2270/T) cm³mol^-1s^-1.

应用

2-Butanone may be used as an oxidizing agent for the conversion of primary alcohols to the corresponding aldehydes via Oppenauer oxidation in the presence of an iridium complex.

安全信息

• 象形图: GHS02,GHS07
• 警示用语：: Danger
• 危险声明: H225,H319,H336
• 预防措施声明: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• 危险分类: Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• 靶器官: Central nervous system
• 补充剂危害: EUH066
• 储存分类代码: 3 - Flammable liquids
• WGK: WGK 1
• 闪点(°F): 30.2 °F - closed cup
• 闪点(°C): -1 °C - closed cup
• 个人防护装备: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter