Measurement of the Iodine Partition Coefficient

Autor: Reinhard Gubler, Robin C. Cripps, Max Furrer
Rok vydání: 1985
Předmět:
Zdroj: Nuclear Technology. 70:290-293
ISSN: 1943-7471
0029-5450
DOI: 10.13182/nt85-a33655
Popis: The hydrolysis of iodine is complicated because it involves a number of species that differ considerably in their individual volatilities. Large uncertainties exist in the thermodynamic data of some of the iodine species, especially at temperatures above 25C. Because of this, an experiment was undertaken to measure the partition coefficient under varying physical and chemical conditions. Measurements of P were made for a temperature range of 21 to 113C under well-defined conditions (liquid molar concentration, pH, and redox potential) for inorganic iodine. The experimental results are interpreted with the aid of an analytical model and published thermodynamic data. A good agreement between calculated and measured values was found. The experimental setup allows the determination of very high partition coefficients up to a value of 2.0 X 10W. This is demonstrated by adding cesium-iodide to the fuel pool water of a boiling water reactor.
Databáze: OpenAIRE