Solvent extraction of beryllium from malonate solutions with liquid anion exchangers

Journal Article · Thu Dec 01 04:00:00 EST 1983 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00264a027· OSTI ID:7139338

Rao, R R; Khopkar, S M

Beryllium was quantitatively extracted at pH 5.5-7.0 in microgram amounts with 0.06 M Aliquat 336S in xylene from 5 x 10/sup -3/ M malonic acid solution, stripped with 0.5 M hydrochloric acid, and determined spectrophotometrically at 523 nm as its complex with thorin. Those metals which could not form anionic complexes with malonic acid and were not extracted with beryllium at pH 6.5 were separated from it. Metals forming weak malonato complexes were scrubbed from the organic phase with water. The elements like bismuth, antimony, iron, uranium, gallium, and vanadium which form strong malonato complexes were separated by selective stripping with hydrochloric, sulfuric, or nitric acid. The method was extended for the analysis of beryllium in beryl and beryllium alloys. 1 figure, 6 tables.

• Research Organization: Indian Inst. of Tech., Bombay
• OSTI ID: 7139338
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 55:14; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104 -- Spectral Procedures-- (-1987)
400105* -- Separation Procedures
ABSORPTION SPECTRA
ALKALINE EARTH METAL COMPLEXES
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ALLOYS
ANIONS
AQUEOUS SOLUTIONS
AROMATICS
ARSENIC COMPOUNDS
BERYL
BERYLLIUM
BERYLLIUM ALLOYS
BERYLLIUM COMPLEXES
BERYLLIUM COMPOUNDS
BERYLLIUM SILICATES
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMICAL ANALYSIS
COMPLEXES
DATA
DIAZO COMPOUNDS
DICARBOXYLIC ACIDS
DISPERSIONS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROCARBONS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
INTERFERING ELEMENTS
ION EXCHANGE
ION EXCHANGE MATERIALS
IONS
MALONIC ACID
MATERIALS
METALS
MINERALS
MIXTURES
NAPHTHOLS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
QUANTITATIVE CHEMICAL ANALYSIS
REAGENTS
SEPARATION PROCESSES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SOLUTIONS
SOLVENT EXTRACTION
SPECTRA
SULFONIC ACIDS
THORIN
TRACE AMOUNTS
XYLENES