How do you make acetic anhydride?

1 Answer
Nov 11, 2016

There are various ways to produce acetic anhydride.

Explanation:

#1.# A condensation reaction between two acetic acid molecules

#"CH"_3"COOH" + "CH"_3"COOH" rarr ("CH"_3"CO")_2"O" + "H"_2"O"#

#2.# Reacting carbon monoxide with methyl acetate:

#"CH"_3"CO"_2"CH"_3 + "CO" rarr ("CH"_3"CO")_2"O"#

#3.# Reacting acetic acid with ethenone:

#"H"_2"C=C=O" + "CH"_3"COOH" → ("CH"_3"CO")_2"O"#