دورية أكاديمية
Τhe role of surface energy in the apparent solubility of two different calcite crystal habits.
| العنوان: | Τhe role of surface energy in the apparent solubility of two different calcite crystal habits. |
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| المؤلفون: | Hadjittofis E; Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, UK.; UCB Pharma SA, Chemin du Foriest, B-1420 Braine-l'Alleud, Belgium., Vargas SM; BP America, Inc., Houston, TX 77079, USA., Litster JD; Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, UK., Sedransk Campbell KL; Department of Chemical and Biological Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, UK. |
| المصدر: | Proceedings. Mathematical, physical, and engineering sciences [Proc Math Phys Eng Sci] 2021 Aug; Vol. 477 (2252), pp. 20210200. Date of Electronic Publication: 2021 Aug 25. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: The Society Country of Publication: England NLM ID: 9891746 Publication Model: Print-Electronic Cited Medium: Print ISSN: 1364-5021 (Print) Linking ISSN: 13645021 NLM ISO Abbreviation: Proc Math Phys Eng Sci Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: London : The Society, c1996- |
| مستخلص: | 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. (© 2021 The Authors.) |
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| فهرسة مساهمة: | Keywords: Ostwald rule of stages; calcium carbonate; crystal habit; polymorphism; surface energy |
| تواريخ الأحداث: | Date Created: 20220214 Latest Revision: 20240823 |
| رمز التحديث: | 20240823 |
| مُعرف محوري في PubMed: | PMC8385356 |
| DOI: | 10.1098/rspa.2021.0200 |
| PMID: | 35153572 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1364-5021 |
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| DOI: | 10.1098/rspa.2021.0200 |