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Merck
CN

695092

Sigma-Aldrich

乙酸

glacial, ACS reagent, ≥99.7%

别名:

冰乙酸

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About This Item

线性分子式:
CH3CO2H
CAS号:
分子量:
60.05
Beilstein:
506007
EC 号:
MDL编号:
UNSPSC代码:
12352106
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

质量水平

蒸汽密度

2.07 (vs air)

蒸汽压

11.4 mmHg ( 20 °C)

方案

≥99.7%

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

Cr2O72- reducers, passes test
MnO4- reducers, passes test
≤0.0004 meq/g Titr. base
≤0.01% acetic anhydride

蒸发残留物

≤0.001%

颜色

APHA: ≤10

折射率

n20/D 1.371 (lit.)

pH值(酸碱度)

2.5 (20 °C, 50 g/L)

沸点

117-118 °C (lit.)

mp

16.2 °C (lit.)

密度

1.04 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤1 ppm
sulfate (SO42-): ≤1 ppm

痕量阳离子

Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)

SMILES字符串

[F2C(F2C)13F3C]C(O)=O

InChI

1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

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一般描述

乙酸是一种有机羧酸。这是一种有刺激性气味的易吸潮的液体。冰醋酸是无水乙酸。它通过溶液中的氢键和通常称为相的气体形成二聚体。它呈弱酸性。

应用

乙酸被广泛地用作各种氧化反应的溶剂。它可用于电子转移(ETD)离解串联质谱(MS/MS)分析合成多肽。它可与过氧化氢(30%过氧化氢)反应制备过氧乙酸(消毒剂)。

其他说明

4L和4X4L为塑料瓶包装

象形图

FlameCorrosion

警示用语:

Danger

危险声明

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)

102.2 °F - closed cup

闪点(°C)

39 °C - closed cup

法规信息

危险化学品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Eagleson M.
Concise Encyclopedia Chemistry, 5-5 (1994)
John E P Syka et al.
Proceedings of the National Academy of Sciences of the United States of America, 101(26), 9528-9533 (2004-06-24)
Peptide sequence analysis using a combination of gas-phase ion/ion chemistry and tandem mass spectrometry (MS/MS) is demonstrated. Singly charged anthracene anions transfer an electron to multiply protonated peptides in a radio frequency quadrupole linear ion trap (QLT) and induce fragmentation
Katharine Trenholme et al.
Antimicrobial agents and chemotherapy, 58(7), 3666-3678 (2014-04-16)
Therapies to prevent transmission of malaria parasites to the mosquito vector are a vital part of the global malaria elimination agenda. Primaquine is currently the only drug with such activity; however, its use is limited by side effects. The development
Isabelle Brunet et al.
The Journal of clinical investigation, 124(7), 3230-3240 (2014-06-18)
Autonomic sympathetic nerves innervate peripheral resistance arteries, thereby regulating vascular tone and controlling blood supply to organs. Despite the fundamental importance of blood flow control, how sympathetic arterial innervation develops remains largely unknown. Here, we identified the axon guidance cue
Xianbao Deng et al.
The New phytologist, 201(4), 1469-1483 (2013-11-26)
• Chalcone synthase (CHS) is the key enzyme in the first committed step of the flavonoid biosynthetic pathway and catalyzes the stepwise condensation of 4-coumaroyl-CoA and malonyl-CoA to naringenin chalcone. In plants, CHS is often encoded by a small family

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