Uranyl hydroxide / Uranyl carbonate j Solubility products / Complexation
SummaryThe solubility of uranyl hydroxide and uranyl carbonate and the formation constants of the complexes present in the supematant Solution were determined at 25°C in 0.1 M NaClOi solutions. The solubility products were found to be logA^,p= -22.21 and log/Csp= -13.29. respectively. In the pH ränge from 4.5 to 5.5 the hydroxo complexes (U02)2(0H)r (lg/? = 22.16), and (U02)3(0H)5^ (lg^ = 53.05) were found. Under the condition -11
The polarized absorption spectraof Ho3+ in HoVOr, HoAsOr, Hop04 and(Hoo,l,Yo,s)(OH)a werestudiedin therangefmm5OOOto12000cm-'. Nearly all crystal-field components were found and their crystal quantum numbers P. Y and S could be assigned.
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