✍ Scribed by László J. Csányi; Károly Jáky
No coin nor oath required. For personal study only.
The iodoform reaction is recommanded for the estimation of acetylacetone. In 20 ml moderately alkaline buffer solution, 0.04-0.40 mmole acetylacetone is oxidized with 15-20 ml 0.2 N KI 3 solution at a sufficiently slow delivery rate (0.03 mlrs 01 or less) under efficient stirring during addition of the reagent. Subsequently, the solution is acidified with 10 ml 3.3 N hydrochloric acid and the excess iodine is back-titrated with thiosulfate. The method is also suitable for determination of the acetylacetone content of metal complexes (10-70 mg).
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