Hydrolysis of scandium(III): ultracentrifugation and acidity measurements
- 1 January 1966
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc. A
- p. 1599-1601
- https://doi.org/10.1039/j19660001599
Abstract
Equilibrium ultracentrifugation and acidity measurements of hydrolysed scandium perchlorate solutions in 1M-sodium perchlorate at 25° have been interpreted by assuming the species ScOH2+, Sc2(OH)2 4+, Sc3(OH)4 5+, and Sc3(OH)5 4+. The least-squares refined formation constants are Sc3++ H2O = ScOH2++ H+ log β1.1=–5·11 ±·09, 2Sc3++ 2H2O = Sc2(OH)2 4++ 2H+ log β2,2=–6·14 ±·02, 3Sc3++ 4H2O = Sc3(OH)4 5++ 4H+ log β4,3=–13·00 ±·06, 3Sc3++ 5H2O = Sc3(OH)5 4++ 5H+log β5,3=–17·47 ±·03 No evidence has been found for the existence of species containing more than three scandium atoms.Keywords
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