The Separation and Determination of Scandium: Spectrophotometric Method using Alizarin Red S

Technical Report · Fri Apr 01 04:00:00 EST 1955

DOI:https://doi.org/10.2172/4389418· OSTI ID:4389418

Eberic, A. R. ^[1]; Lerner, M. W. ^[1]

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1. New Brunswick Laboratory (NBL), New Brunswick, NJ (United States)

A colorimetric method for the determination of scandium has been developed. The scandium alizarin sulfonate lake is used as the color complex in an ammonium acetate buffer medium. The color reaction con forms to Beer's Law in the concentration range of 10 to 120 γ of scandium oxide per 100 ml. Scandium is isolated stepwise from all interferences by (l) a cupferron-chloroform extraction; (2) an iodate precipitation in nitric acid; (3) a tributyl phosphate extraction in a hydrochloric acid system; (4) an ammonium tartrate precipitation; (5) a tributyl phosphate extraction in a hydrochloric acid system. Extraction data for scandium in hydrochloric acid-tributyl phosphate systems is presented. Results are reported on the recovery of scandium in the presence of the major metal ions and of the analyses of some waste residues, process liquors and minerals.

• Research Organization: New Brunswick Laboratory (NBL), New Brunswick, NJ (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• NSA Number: NSA-09-004381
• OSTI ID: 4389418
• Report Number(s): NBL--106
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ACETATES
ACIDITY
ALIZARIN
AMINES
AMMONIUM COMPOUNDS
BEER LAW
BUFFERS
BUTYL PHOSPHATES
CHLOROFORM
COLOR
COLORIMETRY
COMPLEXES
CONCENTRATION
CUPFERRON
DYES
HYDROCHLORIC ACID
HYDROLOGY
HYDROXIDES
INTERFERING ELEMENTS
IODIC ACID
IONS
IRRADIATION
LAKES
METALS
MINERAL ACIDS
MINERALS
NITRIC ACID
ORGANIC CHLORINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHENYL RADICALS
PHOTOMETRY
PRECIPITATION
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
QUINONES
RECOVERY
RESIDUES
SCANDIUM COMPOUNDS
SEPARATION PROCESSES
SODIUM COMPOUNDS
SOLUTIONS
SOLVENT EXTRACTION
SPECTROSCOPY
STABILITY
SULFONIC ACIDS