The acidic behaviour of osmium(VIII) and osmium(VI)

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1983 English Publisher:Springer Science and Business Media LLCJournal:Transition Metal Chemistry, volume 8, pages 328-332 (issn: 0340-4285, eissn: 1572-901X,

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Authors: Zolt�n M. Galb�cs; �gnes Zsednai; L�szl� J. Cs�nyi;

doi: 10.1007/bf00618563

The acidic behaviour of osmium(VIII) and osmium(VI)

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Abstract

Various methods yield a value of 6.3 · 10−13 for the apparent k1 and ∼ 4 · 10−15 for K2 of osmium(VIII) acid at 298 K. Spectrophotometric and potentiometric measurements yielded approximate values for the acidic constants of osmium(VI) acid: 3.2 · 10−9 and 4.0 · 10−11. The dependence of the pH of solution on the potassium osmate(VI) concentration can be interpreted in terms of the base inclusions in the preparation, rather than in terms of the dimerization of the osmium(VI).

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