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Technical Data Sheet
Eastman™ Acetic Anhydride

  • HTF - fine chemicals
  • Adhesives/sealants-B&C
  • Agriculture intermediates
  • Architectural coatings
  • Artifical sweetener
  • Consumer electronics
  • Cosmetic and personal care intermediate
  • Dyes / pigments / paints
  • Electronic chemicals
  • Electronic connectors
  • Food and beverage intermediates
  • Food flavors & food fragrances
  • Fungicides int
  • General industrial coatings
  • Herbicides - intermediate for glyphosate
  • Herbicides - intermediate for other
  • Intermediates
  • Janitorial & household cleaners
  • Other-food chemicals
  • Pharmaceutical chemicals
  • Polymer & plastic
  • Process additives
  • Process solvents
  • Soap/detergents
  • Starting material
  • Upholstery
  • Water treatment industrial
  • Wire wrappers
  • Wire/cable

Product Description
Acetic anhydride ((CH3CO)2O) is manufactured by Eastman and supplied in various grades.

Typical Properties

PropertyTypical Value, Units
Molecular Weight102.1
Empirical FormulaC4H6O3
Specific Gravity 
     @ 20°C/20°C1.08
     @ 20°C1.08 kg/L (9.02 lb/gal)
Boiling Point139.9 °C (283.8 °F)
Freezing Point-73.1 °C (-99.5 °F)
Vapor Pressure 
     @ 20°C4.6 mm Hg
Refractive Index1.3898 n(25°C/D)
     @ 25°C0.91 cP
Coefficient of Expansion 
     @ 20°C0.00145
     in Water, @ 25°CDecomposes
     Water In, @ 25°CDecomposes
Flash Point 
     Tag Closed Cup49 °C (120 °F)
     Tag Open Cup56 °C (132 °F)
Fire Point58 °C (136 °F)
Autoignition Temperature332 °C (630 °F)
Flammability Limitsa 
     Lower96.2 mg/L
     Upper381 mg/L
Assay99 wt %

aAssociates in the vapor phase

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.

11/29/2021 11:07:17 AM