Determination of zinc in metallic uranium

Journal Article · Sun Dec 31 23:00:00 EST 1961 · Bunseki Kagaku (Japan Analyst)

DOI:https://doi.org/10.2116/bunsekikagaku.11.56· OSTI ID:4161206

MORIMOTO, Yoshio; ASHIZAWA, Takashi; TAKANI, Satoru

For determination of zinc in metallic uranium by the dithizone extraction method, the effect of pH on the extraction of zinc-dithizone complex, the concentration of dithizone, and the liberating agent for elution of adsorbed dithizone complex from alumina column were investigated and the following method of determination was established. The sample was dissolved in hydrochloric acid and hydrogen peroxide, it was evaporated to dryness, the residue wvas treated with ammonium citrate tor masking of uranium, aqueous ammonia was added to adjust pH 8.5 plus or minus 0.3, and zinc was extracted as dithizone complex into carbon tetrachloride. The extracted solution was passed through an alumina adsorption column, washed with chloroform for removing of dithizone complexes of nickel and cobalt, the zinc was liberated by use of chloroform-methanol and determined by measuring the light absorbance at 480 m mu . Determination of 0.2 approximates 8 gamma of Zn/Sml was made by the proposed method. (auth)

• Research Organization: Atomic Fuel Corp., Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-001532
• OSTI ID: 4161206
• Journal Information: Bunseki Kagaku (Japan Analyst), Journal Name: Bunseki Kagaku (Japan Analyst) Journal Issue: 1 Vol. 11; ISSN 0525-1931
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ABSORPTION
ACIDITY
ALUMINUM OXIDES
AMMONIA
AMMONIUM COMPOUNDS
CARBON TETRACHLORIDE
CHEMISTRY
CHLOROFORM
CITRIC ACID
CLEANING
COBALT COMPLEXES
DITHIZONE
EVAPORATION
HYDROCHLORIC ACID
HYDROGEN PEROXIDES
LEACHING
LIGHT
MASKING AGENTS
MEASURED VALUES
METHANOL
NICKEL COMPLEXES
ORGANIC CHLORINE COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTITATIVE ANALYSIS
RESIDUES
SEPARATION PROCESSES
SOLVENT EXTRACTION
URANIUM
ZINC
ZINC COMPLEXES