SPECTROPHOTOMETRIC DETERMINATION OF URANIUM AND THORIUM USING NORWOGONIN

Journal Article · Thu Feb 28 23:00:00 EST 1963 · Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem.

OSTI ID:4677685

Katyal, M; Singh, R P

Uranium(VI) and thorium(IV) form orange-colored complexes with norwogonin (5,7,8-trihydroxyflavone) that are soluble in aqueous ethanol. The use of the reagent for spectrophotometric determination of U and Th has been investigated. Beer's law is obeyed over the range of 4 to 20 ppm of metal ion. The Th complex is stable between pH 2.7 and 3.9 and that of U between pH 2.7 and 5.0. Solutions of the Th complex become opalescent at or above pH 3.6 on keeping for a few hours. The molar compositions of the complexes formed by U and Th were found to be 1: 2 and 1: 1, respectively. (auth)

• Research Organization: Delhi Univ., India
• NSA Number: NSA-17-025131
• OSTI ID: 4677685
• Journal Information: Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem., Journal Name: Journal of the Indian Chemical Society (India) Absorbed Indian J. Appl. Chem. Vol. Vol: 40; ISSN JICSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
CHEMISTRY
ETHANOL
PHOTOMETRY
QUANTITATIVE ANALYSIS
SOLUBILITY
SOLUTIONS
SPECTROSCOPY
STABILITY
THORIUM
THORIUM COMPLEXES
URANIUM
URANIUM COMPLEXES
WATER