1958•Journal of the Japan Institute of Metals and MaterialsOpen access

Radiometric Titration of Niobium and Tantalum in Steel (II). Studies on Analytical Methods for Trace Elements in Metals Using Radioactive Isotopes

Hiroshi Amano

Abstract

The methods of determination and separation of Nb and Ta in steels were studied using the radioactive isotopes 95Nb and 182Ta as tracer and radioactive indicators. It was found from the experiences that the perchloric acid-hydrolysis separation method was most superior for separating Nb and Ta from Fe and that after a single s paration from Fe, Nb and Ta could be successfully titrated with cupferron solution using Ta-182 as the radioactive indicator.

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Key concepts: Tantalum, Niobium, Materials science, Radiometric dating, Radiochemistry, Titration, Isotope, TRACE (psycholinguistics)