COMPLEXATION IN THE SYSTEM K2SEO4-UO2SEO4-H2O

Authors
SEREZHKINA LB KUCHUMOVA NV SEREZHKIN VN
Citation
Lb. Serezhkina et al., COMPLEXATION IN THE SYSTEM K2SEO4-UO2SEO4-H2O, Radiochemistry, 35(6), 1993, pp. 640-643
Citations number
6
Categorie Soggetti
Chemistry Analytical","Chemistry Inorganic & Nuclear
Journal title
Radiochemistry → ACNP
ISSN journal
10663622
Volume
35
Issue
6
Year of publication
1993
Pages
640 - 643
Database
ISI
SICI code
1066-3622(1993)35:6<640:CITSK>2.0.ZU;2-9
Abstract
Complexation in the system K2SeO4-UO2SeO4-H2O at 25-degrees-C is studi ed by isothermal solubility. Congruently soluble K2UO2(SeO4)2.4H2O (I) and incongruently soluble K2(UO2)2(SeO4)3.6H2O (II) are observed. The unit-cell constants of I and II are determined from an x-ray diffract ion investigation. For I, a = 12.969, b = 11.588, c = 8.533 angstrom, Z = 4, space group Pmmb. For II, a = 23.36, b = 6.784, c = 13.699 angs trom, beta = 104.42-degrees, Z = 4, space group P2/m, P2, or Pm. Compl exes I and II are representatives of the crystal-chemical groups AB2(2 )M1 and A2T3(3)M1, respectively, of uranyl complexes.