Abstract
The work considers the aggregation process of calcium oxalate monohydrate crystals (whewellite) during their crystallization from aqueous solutions. The intensive crystal aggregation during the precipitation is evidenced by a decrease in the bulk concentration against an increase in the crystal size. At the initial stages of crystallization fine particles are mainly captured by larger ones in the form of substance deposition on the initiating centers: organic blobs, dead cells, and so on. During the crystallization the effect of the dominant growth of large aggregates increases; the process develops autocatalytically; fine particles disappear more rapidly than large ones, and the crystal size distribution compresses simultaneously with an increase in the average particle size.
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Original Russian Text © 2014 A. R. Izatulina, Yu. O. Punin, O. A. Golovanova.
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Translated from Zhurnal Strukturnoi Khimii, Vol. 55, Supplement 1, pp. S41–S47, 2014.
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Izatulina, A.R., Punin, Y.O. & Golovanova, O.A. To the formation of aggregate structures of kidney stones. J Struct Chem 55, 1225–1231 (2014). https://doi.org/10.1134/S0022476614070063
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DOI: https://doi.org/10.1134/S0022476614070063