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8313677 
Journal Article 
The hydrolysis of the neodymium(III) ion, nd3+, in3 m (Li) clo4 medium at 60°c 
Ciavatta, L; Porto, R; Vasca, E 
1989 
1 
Polyhedron
ISSN: 02775387 
8 
22 
2701-2707 
English 
The hydrolysis equilibria of the neodymium(III) ion have been studied in 3 m (Li)ClO4 ionic medium at 60°C by electrometric measurements with a glass electrode. The neodymium(III) concentration ranged from 0.03 to 1 m, whereas the acidity was decreased, with coulometrically generated OH- ions, down to the incipient precipitation of neodymium(III) hydroxide. This occurred when less than 2% of the metal ion was transformed into reaction products. The species Nd(OH)2+, Nd2(OH)24+ and Nd6(OH)126+ were assumed in dilute solutions, ≤ 0.3 m NdIII. At higher concentrations the data were best explained by replacing Nd6(OH)126+ with Nd6(OH)810+. Formation constants in the inert 3 m LiClO4 medium are reported. © 1989.