THE DETERMINATION OF TANTALUM AS A CONTAMINANT IN ZIRCONIUM, HAFNIUM AND NIOBIUM

Journal Article · Sat Aug 01 00:00:00 EDT 1959 · Ind. Lab. (English Translation)

OSTI ID:4104692

Pauer, R S; Poluektov, N S

Tantalum was determined photocolorimetrically, by means of the color of the benzene extract of the fluorotantalate of methyl violet, in hafnium, niobium, and zirconium. The maximum benzene extraction of tantalum was obtained with a hydrofluoric acid concentration of 0.3N with the addition of 0.04% methyl violet, at pH 2.3. The fluorine complex of niobium with methyl violet was extracted by benzene, but only to a slight extent. This ex-. tracted niobium could be re- extracted with hydrofluoric acid containing methyl violet. The loss in color intensity, caused by washing, was corrected for by means of a specially constructed curve. (M.C.G.)

• Research Organization: Inst. of General and Inorganic Chemistry, Academy of Sciences, Ukrainian SSR
• NSA Number: NSA-15-008704
• OSTI ID: 4104692
• Journal Information: Ind. Lab. (English Translation), Vol. Vol: 25; Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
BENZENE
BORN APPROXIMATION
COLOR
CONTAMINATION
CROSS SECTIONS
DISTRIBUTION
DYES
ELECTRIC CHARGES
ELECTRON BEAMS
ELECTRONS
FLUORINE COMPLEXES
FLUORINE COMPOUNDS
HAFNIUM
HYDROFLUORIC ACID
INTERACTIONS
MEASURED VALUES
METHYL VIOLET
NIOBIUM
NUCLEAR MODELS
NUMERICALS
PERTURBATION THEORY
QUANTITATIVE ANALYSIS
SCATTERING
TANTALUM
TANTALUM FLUORIDES
TANTALUM OXIDES
ZIRCONIUM