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Volume 64, 1968
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Spectrophotometric determination of association constant of lanthanum salicylate

Abstract

Spectrophotometric evidence has been obtained for the formation of the ion-pair LaHSal2+ in aqueous solution of lanthanum salicylate. A new spectrophotometric method of determining association constants of ion-pairs of metal ions with anions of weak acids is described. The method, which dispenses with pH-measurements, has been applied to determine the association constant K={LaHSal2+}/{La3+}{HSal} for the LaHSal2+ ion-pair; at 25°C its value is 1.19 × 102.

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Trans. Faraday Soc., 1968,64, 1052-1058
Article type
Paper

Spectrophotometric determination of association constant of lanthanum salicylate

Z. L. Ernst and P. J. Newman, Trans. Faraday Soc., 1968, 64, 1052
DOI: 10.1039/TF9686401052

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