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Merck
CN

695092

乙酸

glacial, ACS reagent, ≥99.7%

别名:

冰乙酸

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线性分子式:
CH3CO2H
化学文摘社编号:
64-19-7
分子量:
60.05
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
329761715
EC Number:
200-580-7
Beilstein/REAXYS Number:
506007
MDL number:
MFCD00036152

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产品名称

乙酸, glacial, ACS reagent, ≥99.7%

InChI

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

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

SMILES string

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

grade

ACS reagent

vapor density

2.07 (vs air)

vapor pressure

11.4 mmHg ( 20 °C)

assay

≥99.7%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

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

evapn. residue

≤0.001%

color

APHA: ≤10

refractive index

n20/D 1.371 (lit.)

pH

2.5 (20 °C, 50 g/L)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

Quality Level

200

solubility

water: soluble (602.9 g/l at 25 °C)

density

1.04 g/mL at 25 °C (lit.)

anion traces

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

cation traces

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

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Application

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)。

General description

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。

Other Notes

4L和4X4L为塑料瓶包装

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H226,H314

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1A

存储类别

3 - Flammable liquids

wgk

WGK 1

flash_point_f

102.2 °F - closed cup

flash_point_c

39 °C - closed cup

法规信息

危险化学品
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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCZ2107
MKCZ2106
MKCX9376
MKCX9377
MKCZ3366

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