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27221 Sigma-Aldrich

Acetic acid

glacial, puriss., 99-100%

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 329752985

  •  NACRES NA.21

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Properties

Related Categories Acetic Acid, Acids, Acids & Bases, Chemical Synthesis, Essential Chemicals,
vapor density   2.07 (vs air)
InChI Key   QTBSBXVTEAMEQO-UHFFFAOYSA-N
grade   puriss.
assay   99-100%
autoignition temp.   800 °F
expl. lim.   16 %, 92 °F
  4 %, 59 °F
impurities   ≤0.0005% heavy metals (as Pb)
  ≤0.005% non-volatile matter
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-): ≤5 mg/kg
  sulfate (SO42-): ≤5 mg/kg
cation traces   Fe: ≤5 mg/kg

Description

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).

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

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Protocols & Articles

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References

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