ANALYTICAL USE OF ARSENAZO. III. DETERMINATION OF THORIUM, ZIRCONIUM, URANIUM AND RARE EARTH ELEMENTS

Journal Article · Fri Sep 01 04:00:00 EDT 1961 · Talanta (England)

DOI:https://doi.org/10.1016/0039-9140(61)80164-1· OSTI ID:4837997

Savvin, S B

The reagent arsenazo III (1,8-dihydroxynaphthalene3,6-disulphonic acid- 2,7-bisSTA(azo-2)-phenylarsonic acid!) gave marked color reactions with a number of elements. Anions were found to affect the reaction oniy to a slight degree and it is possible to work at low pH values; the reaction is very sensitive and the compound was thus used for the photometric determination of Th, Zr, Hf, U, rare earths, and some other elements. The method is most selective for Th, Zr, and U(IV). Materials containing these elements can be analyzed directly, in the solutions formed after dissolving the sample, without separation of the stable elements. (auth)

• Research Organization: Vernadskii Inst. of Geochemistry and Analytical Chemistry, Academy of Sciences, Moscow
• NSA Number: NSA-15-030615
• OSTI ID: 4837997
• Journal Information: Talanta (England), Journal Name: Talanta (England) Vol. Vol: 8; ISSN TLNTA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ANIONS
ARSENAZO
CHEMISTRY
COLOR
DYES
HAFNIUM
MEASURED VALUES
PHOTOMETRY
QUANTITATIVE ANALYSIS
RARE EARTHS
SENSITIVITY
THORIUM
THORIUM COMPOUNDS
URANIUM
USES
ZIRCONIUM