1.00042 Supelco

Acetic anhydride

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Synonym: Acetic anhydride, Acetyl acetate, Acetyl oxide

  • CAS Number 108-24-7

  • Linear Formula (CH3CO)2O

  • Molecular Weight 102.09

  •  MDL number MFCD00008705

  •  EC Index Number 203-564-8



Quality Level   300
grade   ACS reagent
  Reag. Ph. Eur.
  reag. ISO
vapor pressure   4 hPa ( 20 °C)
autoignition temp.   330 °C
potency   630 mg/kg LD50, oral (Rat)
  4320 mg/kg LD50, skin (Rabbit)
expl. lim.   2.0-10.2 % (v/v)
pH   3 (20 °C, 10 g/L in H2O)
mp   -73 °C
transition temp   flash point 49 °C
density   1.08 g/cm3 at 20 °C
InChI   1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
storage conditions   Store at +15°C to +25°C.


General description

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Analysis Note

Purity (GC)≥ 98.5 %Identity (IR)conformsAppearanceclearColor≤ 10 HazenChloride (Cl)≤ 2 ppmSulfate (SO₄)≤ 5 ppmPhosphate (PO₄)≤ 5 ppmHeavy metals (as Pb)≤ 2 ppmReadily carbonizable substancesconformsSubstances reducing potassium permanganate (as O)≤ 150 ppmAl (Aluminium)≤ 0.5 ppmB (Boron)≤ 0.02 ppmBa (Barium)≤ 0.1 ppmCa (Calcium)≤ 0.5 ppmCd (Cadmium)≤ 0.05 ppmCo (Cobalt)≤ 0.02 ppmCr (Chromium)≤ 0.05 ppmCu (Copper)≤ 0.02 ppmFe (Iron)≤ 0.1 ppmMg (Magnesium)≤ 0.1 ppmMn (Manganese)≤ 0.02 ppmNi (Nickel)≤ 0.02 ppmPb (Lead)≤ 0.1 ppmSn (Tin)≤ 0.1 ppmZn (Zinc)≤ 0.1 ppmEvaporation residue
≤ 20 ppm≤ 20 ppm

Evaporation Number: 0.46

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EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

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