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Title: Experimental investigation of the iodine partition coefficient

Short-term values of the iodine partition coefficient (IPC) were evaluated experimentally by an air/water system over the following ranges of conditions: temperature = 25 to 70/sup 0/C, pH = 5 to 9, and iodine concentration = 10/sup -9/ to 10/sup -2/ kg iodine/m/sup 3/ H/sub 2/O. The experimental IPC values are relatively independent of temperature over the indicated range, but show a significant dependence on pH and iodine concentration. In basic solutions the short-term values are several orders of magnitude less than the true equilibrium values; in acid solutions, the differences are much less. These results are useful for predicting the disposition of iodine shortly (i.e., 1 to 10 h) after iodine has been released into an air/water environment.
Authors:
; ;
Publication Date:
OSTI Identifier:
5920915
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nucl. Technol.; (United States); Journal Volume: 71:2
Research Org:
University of Virginia Department of Nuclear Engineering, Charlottesville, VA
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; IODINE; PARTITION; AIR; AQUEOUS SOLUTIONS; MEDIUM TEMPERATURE; PH VALUE; QUANTITY RATIO; TEMPERATURE DEPENDENCE; WATER; DISPERSIONS; ELEMENTS; FLUIDS; GASES; HALOGENS; HYDROGEN COMPOUNDS; MIXTURES; NONMETALS; OXYGEN COMPOUNDS; SOLUTIONS 050800* -- Nuclear Fuels-- Spent Fuels Reprocessing; 400105 -- Separation Procedures