COLORIMETRIC DETERMINATION OF ZIRCONIUM BY MEANS OF ITS REACTION WITH ARSENAZO III

Journal Article · Fri Jan 01 04:00:00 EST 1960 · Zavodskaya Lab.

OSTI ID:4141523

Goryushina, V G; Romanova, E V

The reagent arsenazo III (1,8-dioxynaphthalene-3,6disulfonate-2,7-bis- azo-2-phenyl arsenic acid) forms bluish-violet complexes with Zr even in a 2 N HCl solution, the optical density of which remains stable through a wide pH range. As in the case of the pyrocatechin violet method, the Zr must be transformed into a homogeneous zirconyl solution by bringing to boiling with HCl. The best range for the determination lies between 5 and 30 per 50 ml of sample. The method is highly selective: relatively high concentrations of Al, Fe, Ti, and Sn could be tolerated thus making it useful in the rapid determination of Zr in ores without first separating the other elements. (TTT)

• Research Organization: State Research and Planning Inst. of the Rare Metal Industry, USSR
• NSA Number: NSA-14-018877
• OSTI ID: 4141523
• Journal Information: Zavodskaya Lab., Journal Name: Zavodskaya Lab. Vol. Vol: 26
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACIDITY
ALUMINUM
ARSENAZO
BOILING
CHEMICAL REACTIONS
CHEMICALS
CHEMISTRY
COLOR
HYDROCHLORIC ACID
HYDROXIDES
IRON
NAPHTHALENE
ORES
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHENYL RADICALS
PYROCATECHIN VIOLET
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SEPARATION PROCESSES
SOLUTIONS
STABILITY
TIN
TITANIUM
TRACE AMOUNTS
ZIRCONIUM
ZIRCONIUM COMPLEXES