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COULOMETRIC TITRATION OF URANIUM AND URANIUM-VANADIUM MIXTURES WITH +3 TITANIUM

Journal Article · · Analytica Chimica Acta (Netherlands)
Coulometrie titration of +6 uranium with electrogenerated titanous ion at a platinum cathode in 8 F sulfuric acid can be performed accurately in the presence of ferrous ion as a catalyst. Amperometric end-point detection is employed. The titration is suitable for the precise assay of uranium compounds. Mixtures of +5 vanadium and +6 uranium can be titrated, because the reduction of +5 vanadium occurs at a more oxidizing potential than the reduction of +4 vanadium and +6 uranium. Using amperometric end-point detection, two end-points are observed corresponding to the reduction of +5 vanadium to the +4 state, and to the simultaneous reduction of +4 vanadium to the +3 state and +6 uranium to the +4 state. Errors are as small as plus or minus 0.3%, provided the uranium/ vanadium ratio is between 0.1 and 10. (auth)
Research Organization:
Harvard Univ., Cambridge, Mass.
NSA Number:
NSA-12-006476
OSTI ID:
4309811
Journal Information:
Analytica Chimica Acta (Netherlands), Journal Name: Analytica Chimica Acta (Netherlands) Vol. Vol: 18; ISSN ACACA
Country of Publication:
Country unknown/Code not available
Language:
English

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