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Stabilité des carboxylates de terres rares I Furanne- et thiophène-carboxylates-2

✍ Scribed by R. Roulet; J. Feuz; T. Vu Duc


Publisher
John Wiley and Sons
Year
1969
Tongue
German
Weight
205 KB
Volume
52
Category
Article
ISSN
0018-019X

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✦ Synopsis


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.


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## Abstract The stability constants of 2, 2‐bis‐hydroxymethyl‐propionates of rare earths have been determined at ionic strength 0,100 (NaClO~4~) at 25.0°C by a potentiometric method. The ligand forms 1 : 1 and 1 : 2 complexes with all the rare earths and weak 1 : 3 complexes with light rare earths

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## 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 fir