DETERMINATION OF THE STOICHIOMETRY OF URANIUM DIOXIDE. POLAROGRAPHIC DETERMINATION OF URANIUM(VI) IN URANIUM DIOXIDE

Journal Article · Sun May 01 00:00:00 EDT 1960 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60162a010· OSTI ID:4842622

Kubota, H

The deviation of the composition of uranium dioxide from the stoichiometric oxygen--uranium ratio of 2.000 is calculated from the assay for the uranium(VI) in the oxide. The sample is dissolved in hot phosphoric acid under an inert atmosphere to preserve the oxidation states of the metal, and the uranium(VI) is determined polarographically in a phosphoric-perchloric acid medium. Because this is a direct determination of the deviation from stoichiometry, it is best applied to samples which are nearly stoichiometric, and the composition of a uranium dioxide sample which has an oxygen--uranium ratio of 2.03 or less can be determined to within 0.001 oxygen atom. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-013692
• OSTI ID: 4842622
• 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: 32; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ATMOSPHERE
ATOMS
CHEMISTRY
OXYGEN
PERCHLORIC ACID
PHOSPHORIC ACID
POLAROGRAPHY
QUANTITATIVE ANALYSIS
URANIUM
URANIUM DIOXIDE
USES