Acetic Anhydride

About Acetic Anhydride

Acetic anhydride (ethanoic anhydride) has the formula C₄H₆O₃ and is derived from Acetic (Ethanoic) Acid (CH₃COOH). As an anhydride (literal meaning “without water”), it is made from a pair of acetic acid molecules via dehydration, i.e., that have had a H₂O molecule eliminated. By reacting acetic anhydride with water, the process can be reversed to produce acetic acid.

At room temperature it is a clear, colorless liquid that has a distinct, sharp odor similar to that of a strong, white vinegar solution. This is due to the reaction with water vapor in the air that re-creates acetic acid (vinegar).

Acetic Anhydride is used extensively as a reagent in the synthesis of various organic molecules. In industry it is used in making plastics, drugs, dyes, perfumes, and explosives. In high schools and colleges it is often used in the synthesis of aspirin. 

It is a highly corrosive substance with the potential to damage the skin and eyes.

Acetic Anhydride Offerings at Lab Alley

• Acetic Anhydride, ACS Grade
• Acetic Anhydride, Lab Grade

Common Uses

• Adhesive agent
• Perfumes
• Plastics production
• Aspirin production

Industries

• Chemical
• Explosive
• Pharmaceutical
• Medical Research And High School/College Laboratories