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27225-M

Sigma-Aldrich

Acetic acid

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

Synonym(s):

Glacial acetic acid

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About This Item

Linear Formula:
CH3CO2H
CAS Number:
64-19-7
Molecular Weight:
60.05
Beilstein:
506007
EC Number:
200-580-7
MDL number:
MFCD00036152
UNSPSC Code:
12352106
PubChem Substance ID:
329752986
NACRES:
NA.21

Agency

meets purity specifications of USP (identity)

Quality Level

100

vapor density

2.07 (vs air)

grade

puriss.

Assay

99.8-100.5%

autoignition temp.

800 °F

quality

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

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

SMILES string

CC(O)=O

InChI

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

InChI key

QTBSBXVTEAMEQO-UHFFFAOYSA-N

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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.

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).

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H226,H314

Hazard Classifications

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

WGK

WGK 1

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Regulatory Information

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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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