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27221

Sigma-Aldrich

Acetic acid

glacial, puriss., 99-100%

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Synonym(s):
Glacial acetic acid
Linear Formula:
CH3CO2H
CAS Number:
Molecular Weight:
60.05
Beilstein:
506007
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

2.07 (vs air)

Quality Level

grade

puriss.

Assay

99-100%

form

liquid

autoignition temp.

800 °F

expl. lim.

16 %, 92 °F
4 %, 59 °F

technique(s)

mass spectrometry (MS): suitable

impurities

≤0.0005% heavy metals (as Pb)
≤0.005% non-volatile matter

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.)

density

1.049 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤5 mg/kg

cation traces

Fe: ≤5 mg/kg

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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1 of 4

This Item
69509233209A6283
Acetic acid glacial, puriss., 99-100%

Sigma-Aldrich

27221

Acetic acid

-
Acetic acid glacial, ACS reagent, ≥99.7%

Sigma-Aldrich

695092

Acetic acid

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

Sigma-Aldrich

33209

Acetic acid

Essential Grade
Acetic acid glacial, ReagentPlus®, ≥99%

Sigma-Aldrich

A6283

Acetic acid

-
grade

puriss.

grade

-

grade

-

grade

-

assay

99-100%

assay

≥99.7%

assay

≥99.8%

assay

≥99%

form

liquid

form

liquid

form

liquid

form

liquid

impurities

≤0.0005% heavy metals (as Pb), ≤0.005% non-volatile matter

impurities

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

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)

impurities

-

refractive index

n20/D 1.371 (lit.)

refractive index

n20/D 1.371 (lit.)

refractive index

n20/D 1.371 (lit.)

refractive index

n20/D 1.371 (lit.)

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 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).

Other Notes

The article number 27221-6X1L will be discontinued. Please order the single bottle 27221-1L which is physically identical with the same exact specifications.

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

102.2 °F

Flash Point(C)

39 °C


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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
Eagleson M.
Concise Encyclopedia Chemistry, 5-5 (1994)
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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
Xianbao Deng et al.
The New phytologist, 201(4), 1469-1483 (2013-11-26)
• Chalcone synthase (CHS) is the key enzyme in the first committed step of the flavonoid biosynthetic pathway and catalyzes the stepwise condensation of 4-coumaroyl-CoA and malonyl-CoA to naringenin chalcone. In plants, CHS is often encoded by a small family

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