SPECTROPHOTOMETRIC DETERMINATION OF SCANDIUM WITH ARSENAZO

Technical Report · Mon Feb 11 23:00:00 EST 1963

OSTI ID:4667880

Onishi, H; Banks, C V

Arsenazo is used for the spectrophotometric determination of scandium in the range 10 to 50 mu g. The absorbance is measured at 570 m mu and pH 6.1. A method is proposed for the successive determination of scandium and thorium. Scandium is separated from magnesium, calcium, rare earths, zirconium, fluoride, phosphate, and some other metals by extraction with TTA in xylene. Copper, aluminum, and iron(III) are removed by 8-quinolinolchloroform extraction. Uranium(VI) is removed by anion exchange using hydrochloric acid. Thorium is separated from scandium by anion exchange using nitric acid. (auth)

• Research Organization: Ames Lab., Ames, Iowa
• DOE Contract Number: W-7405-ENG-82
• NSA Number: NSA-17-035628
• OSTI ID: 4667880
• Report Number(s): IS-612
• Country of Publication: United States
• Language: English

Related Subjects

ACETONE
ACIDITY
ARSENAZO
CHEMISTRY
CHLORINATED HYDROCARBONS
CHLOROFORM
FLUORINATED HYDROCARBONS
HETEROCYCLICS
HYDROCHLORIC ACID
HYDROXIDES
IMPURITIES
ION EXCHANGE
NITRIC ACID
ORGANIC NITROGEN COMPOUNDS
PHOTOMETRY
QUANTITATIVE ANALYSIS
QUINOLINE
SCANDIUM
SCANDIUM COMPLEXES
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTROSCOPY
THORIUM
TRACE AMOUNTS
TTA
XYLENE