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Precipitation and Hydrolysis of Thorium(IV) in Aqueous Solution. III. The Composition of the Precipitates in the System Thorium Nitrate - Potassium Phthalate

H. Bilinski ; Department of Physical Chemistry, Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia


Puni tekst: engleski pdf 10.224 Kb

str. 71-81

preuzimanja: 296

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Sažetak

Precipitation from water solutions of thorium nitrate and
potassium phthalate was investigated for a broad range of concentrations
of both precipitation components. The influence of pH
and of time on the formation of various precipitates was studied,
the composition and characteristics of the precipitates being
determined by chemical analysis, and IR and NMR spectra. The
following precipitates were characterized:
Th(OH).:1 without water of crystallization;
Th (Phthalateh without water of crystallization;
Thorium hydroxide-phthalate polymer with unknown formula.
An empirical formula was derived, which shows the conditions
for precipitation of thorium hydroxide in the presence of potassium
phthalate. In the soluble mixed hydroxo-phthalato thorium
complex, two OH- ions are bound per one thorium.

Ključne riječi

Hrčak ID:

208167

URI

https://hrcak.srce.hr/208167

Datum izdavanja:

25.8.1966.

Posjeta: 553 *