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Methorics of the Precipitation Processes. XVI. A Study of the Precipitation of Sparingly Soluble Metal Iodates

M. M. Herak ; Laboratory of Physical Chemistry, Faculty of Science, University of Zagreb, School of Public Health, Faculty of Medicine University of Zagreb and Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
M. J. Herak ; Laboratory of Physical Chemistry, Faculty of Science, University of Zagreb, School of Public Health, Faculty of Medicine University of Zagreb and Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
J. Kratohvil ; Laboratory of Physical Chemistry, Faculty of Science, University of Zagreb, School of Public Health, Faculty of Medicine University of Zagreb and Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
B. Težak ; Laboratory of Physical Chemistry, Faculty of Science, University of Zagreb, School of Public Health, Faculty of Medicine University of Zagreb and Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Sažetak

The precipitation phenomenology of silver, lead, and lanthanum iodates in aqueous electrolytic solutions and the concentration regions of their separation as solid phase were investigated. Only in the case of silver iodate the limiting concentrations for precipitation were concordant to the solubility concentrations of some other authors. It seems that in solutions with great excess of metal ions complex ionic species of the type [MenI03]n-1 are formed. In all three cases there exist differences between the limiting concentrations for the precipitation and the ionic solubility values. The precipitation curves of metal iodates show only one maximum which extends from the complex solubility limit at high metal concentrations to the another boundary at low concentrations.

Ključne riječi

Hrčak ID:

246470

URI

https://hrcak.srce.hr/246470

Datum izdavanja:

8.8.1957.

Posjeta: 319 *