The hydrolysis of metal ions. Part 8. Aluminium(III)
- 1 January 1985
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 9,p. 1967-1970
- https://doi.org/10.1039/dt9850001967
Abstract
An automated potentiometric titration technique has been used to study the hydrolytic behaviour of the aluminium(III) ion in 0.10 mol dm–3 sodium nitrate at 25 °C. Low aluminium(III) concentrations (up to 0.1 mol dm–3) were used so that the monomeric species, [Al(OH)]2+ and [Al(OH)2]+, could be identified. The data treatment indicates the presence of the species [Al(OH)]2+, [Al(OH)2]+, [Al3(OH)4]5+, and a high-molecular-weight polymer with a q/p ratio (OH/Al) of ca. 2.46 and a p value between 6 and 14. The –log βpq values for these species {βpq=[Alp(OH)q (3p–q)+][H+]q/[Al3+]p} are estimated to be 5.33 (0.009), 10.91 (0.04), 13.13 (0.005), and 5.73 – 3.6p+ 4.64q(0.04) respectively, the estimated standard deviations being given in parentheses.Keywords
This publication has 0 references indexed in Scilit: