ACID-BASE EQUILIBRIA IN ACETYLACETONE: DISSOCIATION OF SOME WEAK ACIDS AND THE AUTOPROTOLYSIS CONSTANT OF THE SOLVENT

Ikko SAKAMOTO; Kaoru MASUDA; Satoshi OKAZAKI; Taitiro FUJINAGA

doi:10.2116/bunsekikagaku.31.E49

Ikko SAKAMOTO, Kaoru MASUDA, Satoshi OKAZAKI, Taitiro FUJINAGA

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Keywords: acid-base equilibria in acetylacetone, autoprotolysis constant of acetylacetone, calibration of glass electrode in acetylacetone, solvent properties of acetylacetone

JOURNAL FREE ACCESS

1982 Volume 31 Issue 1 Pages E49-E52

DOI https://doi.org/10.2116/bunsekikagaku.31.E49

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Abstract

The dissociation and homoconjugation constants of 2, 5-dichlobenzenesulfonic, p-toluenesulfonic, methanesulfonic and picric acids have been determined at 25°C in acetylacetone by conductometry and potentiometry, and compared with those in other solvents. The autoprotolysis constant (K_s) of acetylacetone was estimated potentiometrically with a glass electrode (pK_s = 19.3).

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