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STUDIES ON ANALYTICAL METHODS FOR TRACE ELEMENTS IN METALS BY USING RADIOACTIVE ISOTOPE. II. DETERMINATION OF NIOBIUM AND TANTALUM IN STEEL

Journal Article · · Sci. Repts. Research Insts., Tohoku Univ., Ser. A
OSTI ID:4062405

The methods of determining and separating niobium and tantalum in steels were studied using the radioisotopes Nb/sup 95/ and Ta/sup 182/ as the tracer and radioactive indicator. It was seen that the perchloric acid hydrolysis separation method was most superior, and that after the single separation from iron, the sum of niobium and thntalum was successfully titrated with cupferron solution by using Ta/sup 182/ as a radioactive indicator. (auth)

Research Organization:
Research Inst. for Iron, Steel and Other Metals, Japan
NSA Number:
NSA-15-012881
OSTI ID:
4062405
Journal Information:
Sci. Repts. Research Insts., Tohoku Univ., Ser. A, Journal Name: Sci. Repts. Research Insts., Tohoku Univ., Ser. A Vol. Vol: 11
Country of Publication:
Country unknown/Code not available
Language:
English