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Spectrophotometric Determination of Uranium with Sorbohydroxamic Acid as Reagent
Author(s) -
Liu ChuenYing,
Yuan BihChwen,
Sun PengJoung
Publication year - 1977
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197700018
Subject(s) - chemistry , uranyl , uranium , reagent , thorium , ionic strength , ether , inorganic chemistry , cerium , nuclear chemistry , ion , chelation , stability constants of complexes , extraction (chemistry) , radiochemistry , chromatography , organic chemistry , aqueous solution , metallurgy , materials science
Sorbohydroxamic acid forms with uranium an orange red, water soluble complex. The mole ratio of uranyl ion to compound is 1 to 1 under the investigated conditions. The formation constant of this chelate was also determined by the Likussar—Boltz method at a constant ionic strength of 0.1 M at 30°C as 2.10×10 2 . The recommended procedure obeys Beer's law between 3.98 ppm and 166.6 ppm of uranyl ion at pH 3.8±0.1. Tolerances to cerium (IV) and thorium have been investigated. The procedure for the determination of uranium are made more specific by applying preliminary extraction of uranium by ether.