Abstract: To study the nature of the mixed complexes of UO2(II) ion with bidentate carboxylic and phenolic acids, potentiometric titrations of UO2(II) ion with various bidentate chelating agents were carried out. Evidence for the formation of 1 : 1 chelates of UO2(II) with different ligands such as phthalic, adipic, succinic, 3 : 5-dinitrosalicylic and 5-sulphosalicylic acids was found. A study of the UO2(II) ion in the presence of equimolar concentrations of two ligands showed the formation of mixed ligand chelates containing 1 : 1 : 1 molar ratios of UO2(II) and the two ligands. Formation constants of the mixed chelates are calculated and the chelates are shown to have formed in simultaneous equilibria. The lower values of stability constants of mixed ligand chelates than the sum of individual log stability constants of the first and second ligand are discussed.
Publication Year: 1973
Publication Date: 1973-03-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 19
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot