The hydrolysis-precipitation equilibrium reaction of aqueous gallium(III) solution was investigated in 0-3 mol-kg-1 NaCl media at low pH at 100°C using a pressure-tight glass vessel. All precipitates were identified as GaOOH. The results were analyzed with a nonlinear least-squares computer program to obtain the solubility product Kso for gallium(III) oxyhydroxide using a single-parameter type of Debye-Hückel equation. The value of log Kso for GaOOH(s) + 3H+ ⇄ Ga3+ + 2H2O was -0.60 at 100°C. The solubility product calculated from thermodynamic data was compared with the experimental result.
- Ionic strength
- Solubility product
ASJC Scopus subject areas
- Molecular Biology
- Physical and Theoretical Chemistry