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695092

Acetic acid

glacial, ACS reagent, ≥99.7%

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Synonym(s):

Glacial acetic acid

Linear Formula:

CH₃CO₂H

CAS Number:

64-19-7

Molecular Weight:

60.05

Beilstein:

506007

EC Number:

200-580-7

MDL number:

MFCD00036152

PubChem Substance ID:

329761715

NACRES:

NA.21

grade

ACS reagent

Quality Level

200

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

Cr₂O₇^2- 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.)

density

1.049 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤1 ppm
sulfate (SO₄^2-): ≤1 ppm

cation traces

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

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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This Item	33209	27221	27225
Sigma-Aldrich 695092 Acetic acid	Sigma-Aldrich 33209 Acetic acid	Sigma-Aldrich 27221 Acetic acid	Sigma-Aldrich 27225 Acetic acid
vapor density 2.07 (vs air)	vapor density 2.07 (vs air)	vapor density 2.07 (vs air)	vapor density 2.07 (vs air)
vapor pressure 11.4 mmHg ( 20 °C)	vapor pressure -	vapor pressure -	vapor pressure -
assay ≥99.7%	assay ≥99.8%	assay 99-100%	assay 99.8-100.5%
form liquid	form liquid	form liquid	form liquid
impurities Cr₂O₇^2- 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 ≤0.0005% heavy metals (as Pb), ≤0.005% non-volatile matter	impurities K₂Cr₂O₇ red. substances, complies, residual solvents, complies, ≤0.0002% heavy metals (as Pb), ≤0.005% non-volatile matter, ≤0.01% KMnO₄ red. matter (as HCOOH)

General description

Acetic acid is an organic carboxylic acid. It is a pungent smelling hygroscopic liquid. Glacial acetic acid is the anhydrous acetic acid. It forms dimers linked by hydrogen bonds in solution and gaseous commonly referred as 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).

Other Notes

4L and 4X4L are packaged in poly bottles

Pictograms

GHS02,GHS05

Signal Word

Danger

Hazard Statements

H226 - H314

Precautionary Statements

P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338

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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