Determination of uranium in wet phosphoric acid

H Górecka; H Górecki

doi:10.1016/0039-9140(84)80118-6

Determination of uranium in wet phosphoric acid

Talanta. 1984 Jun;31(6):459-62. doi: 10.1016/0039-9140(84)80118-6.

Authors

H Górecka¹, H Górecki

Affiliation

¹ Institute of Inorganic Technology and Mineral Fertilizers, Technical University of Wrocław, Wrocław, Poland.

PMID: 18963628
DOI: 10.1016/0039-9140(84)80118-6

Abstract

A method for quantitative determination of uranium in wet phosphoric acid containing 0.001-0.02% of uranium has been developed. After reduction with Fe or FeSO(4) . H(2)O, uranium(IV) is extracted with a kerosene solution of an equimolar mixture of mono- and dinonylphenylphosphoric acids. The uranium is stripped with an oxidizing medium consisting of 10M H(3)PO(4) containing NaClO(3). The uranium stripped is determined spectrophotometrically with Arsenazo III.