Regarding the boiling point of acetic acid
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The mixed solution contains acetic acid, methanol, methyl acetate, sulfuric acid, and water. Which substances can form an azeotrope with acetic acid, and what is its boiling point?
Acetic acid and water; water and methyl acetate are possible options – one can consult an azeotrope handbook
The book on the polyvinyl alcohol production process provides a detailed explanation
Methyl acetate and methanol can form an azeotrope, and methyl acetate and water can also form an azeotrope
Acetic acid and water are definitely azeotropic, and their boiling point can be looked up. As for esters and water, they can also form an azeotrope, while this is not necessarily the case between esters and alcohols.