Avances en Química (May 2010)

Hidrólisis del Ion V (III) a pH mayores de 3 en KCl 3M a 25 °C

  • Vito Lubes,
  • Mary Lorena Araujo,
  • Felipe Brito,
  • Giuseppe Lubes

Journal volume & issue
Vol. 5, no. 1
pp. 51 – 55

Abstract

Read online

Vanadium (III) ion Hydrolysis at pH higher than 3 in KCl 3M at 25 °C. The Vanadium (III) hydrolysis has been studied at 25 ºC in 3.0 M KCl as ionic medium for a range of total Vanadium concentration between 8 and 31,5 mM at pH higher than 3. The analysis of the potentiometric data by means of least-squares computational program LETAGROP, indicated the formation of the following hydroxospecies and their stability constants (-log βpq): VOH2+ (3.13 ± 0.08), V2(OH)24+ (3.76 ± 0.06), V(OH)2+ (6.86 ± 0.02), and V3(OH)8+ (27.47 ± 0.04)

Keywords