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695092 Sigma-Aldrich

Acetic acid

glacial, ACS reagent, ≥99.7%

Synonym: Glacial acetic acid

  • CAS Number 64-19-7

  • Linear Formula CH3CO2H

  • Molecular Weight 60.05

  •  Beilstein/REAXYS Number 506007

  •  EC Number 200-580-7

  •  MDL number MFCD00036152

  •  PubChem Substance ID 329761715

  •  NACRES NA.21

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Properties

Related Categories Acetic Acid, Acids, Acids & Bases, Acids and Bases, Biochemicals and Reagents,
Quality Level   200
grade   ACS reagent
vapor density   2.07 (vs air)
vapor pressure   11.4 mmHg ( 20 °C)
assay   ≥99.7%
autoignition temp.   800 °F
expl. lim.   16 %, 92 °F
  4 %, 59 °F
impurities   Cr2O72- 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.)
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 (SO42-): ≤1 ppm
cation traces   Fe: ≤0.2 ppm
  heavy metals (as Pb): ≤0.5 ppm
SMILES string   CC(O)=O
InChI   1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)
InChI key   QTBSBXVTEAMEQO-UHFFFAOYSA-N

Description

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).

Packaging

100, 4×100 mL in poly bottle

2 L in glass bottle

2.5 L in poly bottle

500 mL in glass bottle

500 mL in poly bottle

6×2.5 L in glass bottle

6×500 mL in glass bottle

6×2.5, 4, 4×4 L in poly bottle

6×500 mL in poly bottle

Other Notes

4L and 4X4L are packaged in poly bottles

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 2789PSN1 3(8) / PGII
WGK Germany 
1
RTECS 
AF1225000
Flash Point(F) 
104 °F
Flash Point(C) 
40 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Single- & multi-channel pipettes from BRAND
Protocols & Articles

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Peer-Reviewed Papers
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References

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