ler X 69) Summuvy. The stability constants of 2-furanccarboxylates and 2-thiophencarboxylates of some rare earths have been determined a t ionic strength 0.100 (NaC10,) a t 25.0"C by a potentiometric method. The ligands form 1 : 1 coniplexes similar t o the rare carths propionates.
Stabilité des carboxylates de terres, III. Maléates, méthylsuccinates et malates
✍ Scribed by R. Roulet; J. Feuz; T. Vu Duc
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- German
- Weight
- 269 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The stability constants of maleates, methylsuccinates and malates of rare earths have been determined at 25.0 °C and at ionic strength 0,100 (NaClO~4~) by a potentiometric method. Each ligand forms 1 : 1 and 1 : 2 complexes in aqueous solution, the malates being the most stable. The first and the second dissociation constants of the ligand acids were also measured. The 1 : 2 maleates of La, Pr, Nd, Sm, and Eu have been isolated.
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