ANALYTICAL APPLICATIONS OF BISAZO DERIVATIVES OF CHROMOTROPIC ACID

Journal Article · Wed Jan 01 04:00:00 EST 1964 · Zh. Analit. Khim.

OSTI ID:4086243

Savvin, S B; Dedkov, Yu M

Reactions of bisazo-derivatives of chromotropic acid with a number of elements were studied. It was established that the selectivity of the reagents, as well as contrast of the reactions and stability of complexes formed, to a large degree are determined by the nature of the acid radical, which is in an ortho-position to the azogroup, and by the nature of derivatives, which are in meta-positions to the azogroup. The most interesting reactions give the reagents containing the following functional-analytical groupings: o-arsono-o, hydroxyazogroup (Th, U, TR, Pa, Z r), o-sulfo-o' -hydroxyazogroup (Ba, Sr, Me(I)), o,o' -dihydroxyazogroup (Nb, Zr, Sc, Te), o-phosphono-o'-hydroxyazogroup (U, Sc). Arsenazo III (reagent No. 4) is recommended for the determination of Th, U, Zr, TR, and a number of other elements, and other reagents are recommended for Ba, Sr, Nb, Zr, and Hf. The reagents of this class are highly sensitive and their reaction products are contrasting; it is possible to work in acid media, and they are highly selective when elements forming polynuclear cations are determined. (auth)

• Research Organization: Vernadskii Inst. of Geochemistry and Analytical Chemistry, Moscow
• NSA Number: NSA-18-013700
• OSTI ID: 4086243
• Journal Information: Zh. Analit. Khim., Journal Name: Zh. Analit. Khim. Vol. Vol: 19
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ARSENAZO
BARIUM
BARIUM COMPLEXES
CHEMISTRY
CHROMOTROPIC ACID
HAFNIUM
HAFNIUM COMPLEXES
NIOBIUM
NIOBIUM COMPLEXES
ORGANIC NITROGEN COMPOUNDS
PROTACTINIUM
PROTACTINIUM COMPLEXES
QUANTITATIVE ANALYSIS
SCANDIUM
SCANDIUM COMPLEXES
STABILITY
STRONTIUM
STRONTIUM COMPLEXES
TELLURIUM
TELLURIUM COMPLEXES
THORIUM
THORIUM COMPLEXES
URANIUM
URANIUM COMPLEXES
ZIRCONIUM
ZIRCONIUM COMPLEXES