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Merck
CN

27225-M

乙酸

puriss., meets analytical specification of Ph. Eur., BP, USP, 99.8-100.5%

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:
329752986
EC Number:
200-580-7
Beilstein/REAXYS Number:
506007
MDL number:
MFCD00036152

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产品名称

乙酸, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.8-100.5%

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

InChI

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

SMILES string

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

agency

meets purity specifications of USP (identity)

vapor density

2.07 (vs air)

grade

puriss.

assay

99.8-100.5%

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

K2Cr2O7 red. substances, complies
 residual solvents, complies
≤0.0002% heavy metals (as Pb)
≤0.01% KMnO4 red. matter (as HCOOH)

evapn. residue

≤0.005%

refractive index

n20/D 1.371 (lit.)

bp

117-118 °C (lit.)

mp

16.2 °C (lit.)

transition temp

freezing point ≥15.6 °C

density

1.04 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.0002%
sulfate (SO42-): ≤0.0005%

cation traces

Al: ≤0.00005%
Cu: ≤0.0005%
Fe: ≤0.0002%
Pb: ≤0.00005%
Zn: ≤0.0005%

suitability

corresponds for appearance

Quality Level

100

quality

meets analytical specification of Ph. Eur., BP, USP

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Application

Acetic acid is widely employed as solvent for various oxidation reactions. It may be used in the analysis of synthetic peptides by electron transfer dissociation (ETD) tandem mass spectrometry (MS/MS). It may be used in the preparation of peroxyacetic acid (disinfectant), via reaction with perhydrol (30% hydrogen peroxide).

General description

Acetic acid is an organic carboxylic acid. It is a hygroscopic liquid having 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.

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

104.0 °F - closed cup

flash_point_c

40 °C - closed cup

法规信息

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分析证书(COA)

Lot/Batch Number
BCCN8361
BCCN8360
SDBB3103
SDBB2902
SDBB1214

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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

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