Determination of the dissociation constants of oxalic acid and the ultraviolet spectra of the oxalate species in 3M perchlorate medium

Determination of the dissociation constants of oxalic acid and the ultraviolet spectra of the oxalate species in 3M perchlorate medium

The dissociation constants for oxalic acid in 3.0M sodium perchlorate medium at 25.0 degrees have been determined by potentiometric and spectrophotometric titrations. The values for the concentration constants are K(a1) = (5.32 +/- 0.15) x 10(-2) and K(a2) = (1.53 +/- 0.02) x 10(-4). The absorption...

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Veröffentlicht in:Talanta (Oxford) 1983-03, Vol.30 (3), p.197-200
Hauptverfasser: Cruywagen, J J, Heyns, J B
Format: Artikel
Sprache:eng
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Zusammenfassung:The dissociation constants for oxalic acid in 3.0M sodium perchlorate medium at 25.0 degrees have been determined by potentiometric and spectrophotometric titrations. The values for the concentration constants are K(a1) = (5.32 +/- 0.15) x 10(-2) and K(a2) = (1.53 +/- 0.02) x 10(-4). The absorption spectra for the individual oxalate species are reported.
ISSN:0039-9140
DOI:10.1016/0039-9140(83)80051-4