SPECTROPHOTOMETRIC DETERMINATION OF NIOBIUM IN URANIUM-FISSION ELEMENT ALLOYS

Journal Article · Sun Sep 01 04:00:00 EDT 1963 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60203a060· OSTI ID:4653167

McCown, J J; Kudera, D E

A method is reported for the spectrophotometric determination of as low as 0.01% niobium in uranium fission element alloys (fissium). The method involves forming NbSCN complex in a mixture of tartaric, sulfuric, and hydrochloric acids and extraction into ethyl acetate. The absorbance is measured at 385 m mu . The procedure was tested on synthetic solutions containing known amounts of U, Mo, Ru, Pd, Rh, Zr, and Nb and was satisfactory. Unirradiated U-- 5% fission element alloys having a nominal composition of 0.01% Nb were analyzed by the thiocyanate method and were found to contain 0.011% Nb. (P.C.H.)

• Research Organization: Argonne National Lab., Idaho Falls, Idaho
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-033812
• OSTI ID: 4653167
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 35; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACETATES
CHEMISTRY
CYANIDES
EFFICIENCY
ETHYL RADICALS
FISSION PRODUCTS
HYDROCHLORIC ACID
NIOBIUM
NIOBIUM COMPLEXES
ORGANIC ACIDS
ORGANIC SULFUR COMPOUNDS
PHOTOMETRY
QUANTITATIVE ANALYSIS
SOLVENT EXTRACTION
SPECTROSCOPY
SULFURIC ACID
TARTARIC ACID
URANIUM ALLOYS