Abstract
During forced hydrolysis an acidified metal salt solution with its solution complexes is placed in a sealed test tube and heated at a specific rate to a high temperature <100°C. By heating the solution equilibria are altered, the hydroxide concentration is increased, and often a metal hydroxide is precipitated from solution as a narrow particle size distribution. This paper presents a theory that links solution complexation equilibria with a population balance model for precipitation predicting the particle size distribution. This model uses classical nucleation theory and growth rates by various rate limiting steps for the growth of the crystals. This theory is compared to forced hydrolysis experiments where dilute Indium nitrate solutions, acidified with nitric acid, were placed in a water bath at 80°C for various periods of time. The experiments produced cubic particles of Indium hydroxide. The experiments were monitored for temperature, pH, turbidity, and particle size distribution, all as a function of time for comparison with this model.
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References
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Ring, T.A., Kudo, Y. (1996). Fundamentals of Forced Hydrolysis of Indium Hydroxide. In: Pelizzetti, E. (eds) Fine Particles Science and Technology. NATO ASI Series, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0259-6_11
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DOI: https://doi.org/10.1007/978-94-009-0259-6_11
Publisher Name: Springer, Dordrecht
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