# How to prepare glacial acetic acid from sodium acetate?

What would be the most practical process to prepare glacial acetic acid from sodium acetate?

I'm thinking to react the sodium acetate with an acid to convert the solution to acetic acid and sodium salt but I'm not sure of the most practical way to proceed from here without distillation (which seems impractical).

I think solvent extraction (using a protonated solvent such as $\ce{CH2Cl2}$) then removal of the solvent would be a way but I'm not sure.

I would like to hear from someone who's done it before.

• I do not think there is an insoluble sodium salt and distillation of glacial acetic acid just sound incredibly dangerous and horrifying. – Martin - マーチン Sep 3 '15 at 6:31
• That's why I don't consider distillation practical. The acetic acid could be extracted into a protonated water insoluble solvent then the solvent removed. Dichloromethane might work? – Technetium Sep 3 '15 at 7:29
• I don't see anything wrong with distillation of acetic acid per se, so it's a way to go as long as it happens under fume hood. Distillation of bromine or nitric acid is way more dangerous and still is used. – permeakra Oct 27 '15 at 7:59
• It forms the azeotrope with water which is difficult to remove. – Technetium Oct 27 '15 at 8:07
• @Joel Same with nitric acid. Still, it is prepared by distillation from reaction mixture of sulfuric acid and potassium nitrate. Same is probably applicable to acetic acid. Or, in case you are not brave enough, the traditional way is a way to go (freezing the azeotrope) – permeakra Oct 27 '15 at 8:11