Cerimetric determination of niobium in the presence of tantalum

Journal Article · Sat Mar 01 04:00:00 EST 1986 · J. Anal. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5141609

Vinarova, L I; Antonovich, V P; Malyutina, T M; Stoyanova, I V

The authors create a titrimetric method of determining niobium in the presence of tantalum. The proposed method permits the determination of niobium in various objects: niobium(V) oxide, technical niobium hydroxide, and columbite concentrate, at various ratios of niobium and tantalum. The data obtained are cited in tables and it can be seen that at the selected ratios of niobium and tantalum in the sample, niobium is virtually entirely determined. Tantalum(IV), vanadium(V), molybdenum(VI), and tungsten(VI) interfere with the determination of niobium.

• Research Organization: Physicochemical Institute, Ukrainian SSR Acad. of Sci., Odessa
• OSTI ID: 5141609
• Journal Information: J. Anal. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Anal. Chem. USSR (Engl. Transl.); (United States) Vol. 40:9, PT. 2; ISSN JACUA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CHEMICAL ANALYSIS
ELEMENTS
EXTRACTION
INTERFERING ELEMENTS
METALS
NIOBATES
NIOBIUM
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
QUANTITY RATIO
REFRACTORY METAL COMPOUNDS
SAMPLE PREPARATION
SEPARATION PROCESSES
SOLVENT EXTRACTION
TANTALUM
TITRATION
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS