2026-10-16T01:19:01Z https://data.mendeley.com/oai

oai:data.mendeley.com/smjc94j5sw.1 2024-11-07T13:58:46Z

Gysi, Alexander The solubility of La hydroxide and stability of La3+ and La hydroxyl complexes at acidic to mildly acidic pH from 25 to 250 °C Mendeley Data Batch-type hydrothermal solubility experiments were conducted using synthetic La hydroxide powders equilibrated in perchloric acid-based aqueous solutions at temperatures between 150 and 250 °C and starting pH of 2 to 5. The La hydroxide solubility is retrograde with temperature and displays a strong pH dependence with a decrease in La concentrations from acidic to mildly acidic pH spanning between 3 to 5 orders of magnitude (e.g. log La molality of -2.5 to -7.2 at 250 °C). Thermodynamic optimizations using GEMSFITS allow to retrieve the standard partial molal Gibbs energies for the La3+ aqua ion and the formation constants for the La hydroxyl species (i.e., LaOH2+, La(OH)2+, La(OH)30) between 25 and 250 °C. Geochemistry Thermodynamics Solubility Dataset doi:10.17632/smjc94j5sw.1 oai:data.mendeley.com/smjc94j5sw.1 Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 https://data.mendeley.com/datasets/smjc94j5sw 2024-11-07T13:58:46Z