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Merck
CN

33209

Sigma-Aldrich

乙酸

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

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
puriss. p.a.

质量水平

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

蒸汽密度

2.07 (vs air)

检测方案

≥99.8%

形式

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)

2.5 (20 °C, 50 g/L)

bp

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 (PO43-): ≤0.5 mg/kg
sulfate (SO42-): ≤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

CC(O)=O

适用性

passes test for indifference to chromic acid

储存温度

room temp

InChI

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

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

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相关类别

一般描述

乙酸是一种有机羧酸。本品为吸湿性液体,有刺激性气味。其无水形式通常称为冰醋酸。在溶液和气相中通过氢键连接形成二聚体。性质为弱酸性。

应用

乙酸已被用于电子转移解离 (ETD) 串联质谱 (MS/MS) 分析合成肽。可通过与过氧化氢(30% 过氧化氢)反应制备过氧乙酸(消毒剂)。
用作高氯酸滴定的溶剂

包装

PE 瓶包装;同时提供玻璃瓶(物料编号以 *-GL结尾)

其他说明

货号 33209-4X2.5L的产品即将停产。请订购33209-2.5L单瓶装,因为其具体参数与上述产品本质相同。
货号为33209-4X2.5L-M 的产品即将停产。请订购33209-2.5L-M单瓶装,因为其物理参数与上述产品本质相同。
货号33209-6X1L-M的产品即将停产。请订购33209-1L-M单瓶装,因为其物理参数与上述产品本质相同。

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

WGK

WGK 1

闪点(°F)

closed cup

闪点(°C)

closed cup

法规信息

危险化学品

分析证书(COA)

输入产品批号来搜索 分析证书(COA) 。批号可以在产品标签上"批“ (Lot或Batch)字后找到。

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Journal of Alzheimer's disease : JAD, 70(4), 1025-1040 (2019-07-16)
Recent studies demonstrate that peripheral amylin treatment reduces pathology in mouse models of Alzheimer's disease (AD). However, soluble and aggregated amylin are distinct species; while amylin is a physiological neuropeptide, amylin aggregation is a pathological factor for diabetes. We thus
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
Eagleson M.
Concise Encyclopedia Chemistry, 5-5 (1994)
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
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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

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