USE OF TITRATION METHODS WITH SHARP END POINTS IN STUDIES OF URANIUM(VI) COMPLEXES

Journal Article · Sat Oct 01 00:00:00 EDT 1960 · Zhur. Neorg. Khim.

OSTI ID:4093420

Palei, P N; Udal'tsova, N I

The reaction of ethylenediaminetetrancetic acid STAcomplexon(II)! and its disodium salt STAcomplexon(III)! oxidation by various acidifiers was studied. It was found that under certain conditions complexon(III) has a tendency to oxidize at a platinum anode. On this basis, a dead-stop end-point method is suggested for the complexometric titration of U(VI) by complexon(III). The results of the analysis (considering the coordinate number six inherent to uranyl ion) indicate the foilowing uranyl compounds with EDTA: Na/sub 2/STAUO/sub 2/(H/ sub 3/Y)/sub 4/!, (NH/sub 4/)/sub 2/STAUO/sub 2/(H/sub 2/Y)/sub 2/!, (NH/sub 4/) / sub 2/STAUO/sub 2/Y(H/sub 2/O)/sub 2/!, and (UO/sub 2/)/sub 2/Y - 3H/sub 2/O. These are obviously the members of a genetic series. Thus the dead-stop end- point titration method can be utilized in studies of complex formation processes in addition to analytical studies. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-010916
• OSTI ID: 4093420
• Journal Information: Zhur. Neorg. Khim., Journal Name: Zhur. Neorg. Khim. Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

AMMONIUM COMPOUNDS
ANODES
CHEMISTRY
COMPLEXOMETRY
EDTA
IONS
OXIDATION
PLATINUM
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
SODIUM COMPOUNDS
TITRATION
URANIUM COMPLEXES
URANYL COMPOUNDS
YTTRIUM COMPLEXES