Spectrophotometric determination of scandium using xylenol orange with prior concentration and separation from interfering elements by precipitation with oxalic acid

Journal Article · Sat Jan 09 23:00:00 EST 1988 · J. Anal. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6481175

Bykhovtsova, T T; Bykhovtsova, I V

The influence of some parameters (pH, salt concentration) on scandium precipitation with oxalic acid in the presence of calcium oxalate as collector has been examined. Scandium precipitates quantitatively as an oxalate at pH 0.8-1.2 in 0.5-1.0 M NH/sub 4/NO/sub 3/. A spectrophotometric method is proposed for determining scandium with Xylenol Orange combined with preseparation from interfering elements by successive precipitation with inositolhexaphosphoric acid and oxalic acid. The method was applied for scandium determination in samples of complex compositions.

• OSTI ID: 6481175
• Journal Information: J. Anal. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States) Vol. 42:7; ISSN JACUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
ACTINIDES
ACTIVATED CARBON
ADSORBENTS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CARBON
CARBONACEOUS MATERIALS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
COAL
DICARBOXYLIC ACIDS
DYES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INDICATORS
INORGANIC ACIDS
INTERFERING ELEMENTS
MATERIALS
METALS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXALATES
OXALIC ACID
PH VALUE
PRECIPITATION
SCANDIUM
SCANDIUM COMPOUNDS
SEPARATION PROCESSES
SPECTROPHOTOMETRY
THORIUM
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM
XYLENOL ORANGE
ZIRCONIUM