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33209-M

Sigma-Aldrich

Acetic acid

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

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:
329754470
NACRES:
NA.21

grade

ACS reagent
puriss. p.a.

Quality Level

100

Agency

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

vapor density

2.07 (vs air)

Assay

≥99.8%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

≤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)

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General description

Acetic acid is an organic carboxylic acid. It is a hygroscopic liquid having a 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 has been 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).
for use as solvent for perchloric acid titration

Packaging

In PE-bottles; also available Glass-bottles (Material no. ending with *-GL)

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H226,H314

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

104.0 °F - closed cup

Flash Point(C)

40 °C - closed cup

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB3102
SDBB2903
STBL3453
SDBB0603
SDBB1120

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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
Gergana Popova et al.
Journal of medicinal chemistry, 63(8), 3915-3934 (2020-03-28)
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