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ACETIC ANHYDRIDE

Acetic anhydride

Acetic Anhydride

  • Density: 1.08 G/cm³ At 20 °C

  • Boiling Point: 140 °C

  • Melting Point: −73 °C

  • Refractive Index (n²⁰ᴰ): 1.372–1.374

  • Flash Point: 56 °C (closed Cup)

  • Solubility: Reacts With Water, Soluble In Ethanol, Ether, Chloroform, Acetone


3. Purity / Chemical Specification

Parameter Typical Value (Industrial Grade) Typical Value (Pharma/Reagent Grade)
Assay / Purity ≥ 99.0% ≥ 99.5%
Acetic Acid Content (as Impurity) ≤ 0.5% ≤ 0.1%
Moisture / Water ≤ 0.2% ≤ 0.05%
Color (APHA/Hazen) ≤ 20 ≤ 10
Appearance Clear, Colorless Liquid Clear, Colorless Liquid
Acid Number ≤ 1 Mg KOH/g ≤ 0.5 Mg KOH/g
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