Etch pit coalescence, surface area, and overall mineral dissolution rates

Andreas Lüttge

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Etch pit coalescence, surface area, and overall mineral dissolution rates

机译：腐蚀坑合并，表面积和总矿物质溶解率

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A simple computer model for the dissolution kinetics of crystalline matter governed by etch-pit formation predicts different development, paths, and states for geometric, total (BET), and reactive surface area during the dissolution process. The model also explores the dynamics of the dissolution rate of a given model crystal surface as a function of the development of surface area. Because the surface area term is used in the normalization of bulk dissolution rates, results of this normalization reflect the large differences explored. Based on this evaluation, we discuss the application of the diversely defined surface area terms. In the light of this discussion, the likelihood of an unambiguous definition or application of reactive surface area is problematic.

机译：由蚀刻坑形成控制的晶体物质溶解动力学的简单计算机模型可预测不同的发展，路径以及几何，总（BET）和反应性表面的状态溶出过程中的区域。该模型还探讨了给定模型晶体表面的溶出速率随表面积变化的动态变化。因为表面积术语用于整体溶出度率的归一化，所以此归一化的结果反映了的巨大差异。基于此评估，我们讨论了各种定义的表面积术语的应用程序。根据的讨论，明确定义或应用反应表面积的可能性存在问题。

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《American Mineralogist》 |2005年第12期|00001776-00001783|共8页
作者
Andreas Lüttge;
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Department of Earth Science and Department of Chemistry, Rice University, Houston, Texas 77251-1892, U.S.A.;

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1. Etch pit coalescence, surface area, and overall mineral dissolution rates [J] . Luttge A The American mineralogist . 2005,第11a12期

机译：腐蚀坑合并，表面积和总矿物质溶解率
2. An integrated study of uranyl mineral dissolution processes: etch pit formation, effects of cations in solution, and secondary precipitation [J] . Schindler M, Hawthorne FC, Mandaliev P, Radiochimica Acta: International Journal for Chemical Aspects of Nuclear Science and Technology . 2011,第2期

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4. DISSOLUTION-PRECIPITATION PROCESSES ON THE SURFACE OF URANYL-MINERALS [C] . M. Schindler International Conference on Uranium . 2010

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Etch pit coalescence, surface area, and overall mineral dissolution rates

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