The stability constants of the rare earth complexes with trimetaphosphoric acid.
The stability constants of the complexes formed between the rare earth metal ions and the anion of trimetaphosphoric acid have been determined at a temperature of 20 degrees C and an ionic strength of mu = 0.1 by the ion-exchange equilibrium method. The investigations indicate that stabilities of complexes increased from La to Lu. The highest and the lowest stability constant values (beta) were found to be 7.76 and 3.82 for Lu3+ and La3+ respectively.
Sungur
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T.C. Kadir Has University, Engineering Faculty, Department of Chemistry, Selimpaşa, Silivri, Turkey. sanasungur@hotmail.com
D007474:Ion Exchange; D007700:Kinetics; D008674:Metals, Rare Earth / Q000737:chemistry*; D008962:Models, Theoretical; D011122:Polyphosphates / Q000737:chemistry*; D013696:Temperature
D008674:Metals, Rare Earth; D011122:Polyphosphates; C009293:trimetaphosphoric acid