Effect of Solution Stoichiometry on BaSO4 Crystallization from Turbidity Measurements and Modeling Peters, Vincent F. D. Baken, A. Seepma, S. Y. M. H. Koskamp, J. A. Fernández Martínez, Alejandro Van Driessche, Alexander Edgard Suzanne Wolthers, M. The impact of solution stoichiometry on the nucleation and growth of BaSO4 was studied by measuring solution transmittance and subsequent fitting to a crystallization model. Our results show that a large excess of either Ba2+ or SO4 2− ions inhibits both the nucleation and growth of BaSO4. However, for a small excess of Ba2+, the growth is enhanced. The dependence of nucleation and growth rates on supersaturation and solution stoichiometry was captured by a semiempirical rate model. Hence, the solution stoichiometry is a highly relevant parameter while studying all aspects of BaSO4 crystallization, and it could be worthwhile to examine other minerals similarly. 2024-04-29T09:56:45Z 2024-04-29T09:56:45Z 2023-12-22 journal article V. F. D. Peters, A. Baken, S. Y. M. H. Seepma, J. A. Koskamp, A. Fernández-Martínez, A. E. S. van Driessche, and M. Wolthers Industrial & Engineering Chemistry Research 2024 63 (1), 78-88 DOI: 10.1021/acs.iecr.3c03612 https://hdl.handle.net/10481/91249 10.1021/acs.iecr.3c03612 eng info:eu-repo/grantAgreement/EC/H2020/819588 http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Chemical Society