Volumetric analysis and catalysis - IV. Determinations by precipitation titration with potassium iodide and thermometric end-point indication

Abstract

The application of the therinometric method to the catalytic endpoint indication in volumetric determinations by precipitation reactions is discussed. The direct titration of silver, mercury(II) and palladium(II) as well as the determination of several anions (Cl-, Br-, J-, SCN-, CN-, [Fe(CN)6]4- and S2-) by backtitration with iodide standard solution is described. The well known reaction between cerium(IV) and arsenic(III), catalysed by iodide, serves as an indicator. The ions mentioned can thus be determined in the microgram range with good accuracy. © 1969 Springer-Verlag.