REACTION OF NIOBIUM WITH XYLENOL ORANGE

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Dopovidi Akad. Nauk Ukr. R.S.R.

OSTI ID:4810329

Babko, A K; Shtokalo, M I

The reaction of niobium with xylenol orange was studied. lt is shown that oxalic acid strongly furthers the formatton of a colored complex of niobium with XO. It is supposed that oxalic acid causes the decomposition of polyions of niobium, after which the monometric ions form a complex with XO. Heating considerably accelerates this process. The optimal reaction conditions are pH 2; Nb: H/sub 2/C/sub 2/ O/sub 4/ ratio 1:5. A large excess of oxalic acid causes a certain attenuation of the color. The absorption spectra indicate the direct formation of a complex with lambda = 530 mu mu and a molar coefficient of absorption E approximately 30000. (auth)

• Research Organization: Inst. of General and Inorganic Physics, Academy of Sciences, Ukrainian SSR
• NSA Number: NSA-16-009992
• OSTI ID: 4810329
• Journal Information: Dopovidi Akad. Nauk Ukr. R.S.R., Journal Name: Dopovidi Akad. Nauk Ukr. R.S.R. Vol. Vol: No. 9
• Country of Publication: Country unknown/Code not available
• Language: Ukrainian

Related Subjects

ABSORPTION
ACCELERATORS
BEAMS
CHEMICAL REACTIONS
CHEMISTRY
COLOR
COMPLEXES
DECOMPOSITION
DYES
HEAT TREATMENTS
HEATING
INSTRUMENTS
IONS
JOURNAL
MAGNETIC MOMENTS
MAGNETISM
NIOBIUM
NIOBIUM COMPLEXES
NUCLEAR MAGNETIC RESONANCE
NUCLEAR MODELS
NUCLEI
OXALIC ACID
PERFORMANCE
POLARIZATION
REACTION KINETICS
SPECTRA
TARGETS
TRANSLATIONS
XENON
XENON OXIDES