ArticleProceedings. Mathematical, physical, and engineering sciences2021
Τhe role of surface energy in the apparent solubility of two different calcite crystal habits.
Article in Proceedings. Mathematical, physical, and engineering sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 9 citations in OpenAlex.
- Solid-Liquid Interfacial Free Energy from Computer Simulations: Challenges and Recent Advances.Chemical reviews · 2025Review
- Surface Free Energies and Entropy of Aqueous CaCOLangmuir : the ACS journal of surfaces and colloids · 2025Article
- Exploring the role of crystal habit in the Ostwald rule of stages.Proceedings. Mathematical, physical, and engineering sciences · 2022Article
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4 authors at 3 institutions in 3 countries.
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Abstract
The interplay between polymorphism and facet-specific surface energy on the dissolution of crystals is examined in this work. It is shown that, using cationic additives, it is possible to produce star-shaped calcite crystals at very high supersaturations. In crystallization processes following the Ostwald rule of stages these star-shaped crystals appear to have higher solubility than both their rhombohedral counterparts and needle-shaped aragonite crystals. The vapour pressures of vaterite, aragonite, star-shaped calcite and rhombohedral calcite crystals are measured using thermogravimetric analysis and the corresponding enthalpies of melting are obtained. Using inverse gas chromatography, the surface energy of the aforementioned crystals is measured as well and the surface energy of the main crystal facets is calculated. Combining the effect of facet-specific surface energies and the enthalpies of melting on a modified version of the classical solubility equation for regular solutions, it is proved that the star-shaped calcite crystals can indeed have higher apparent solubility than aragonitecrystals.
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