Please use this identifier to cite or link to this item:
https://doi.org/10.1016/j.jcrysgro.2009.09.041
DC Field | Value | |
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dc.title | Effect of Mg2+ on the kinetics of calcite crystal growth | |
dc.contributor.author | Lin, Y.-P. | |
dc.contributor.author | Singer, P.C. | |
dc.date.accessioned | 2014-10-08T08:32:09Z | |
dc.date.available | 2014-10-08T08:32:09Z | |
dc.date.issued | 2009-12-15 | |
dc.identifier.citation | Lin, Y.-P., Singer, P.C. (2009-12-15). Effect of Mg2+ on the kinetics of calcite crystal growth. Journal of Crystal Growth 312 (1) : 136-140. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcrysgro.2009.09.041 | |
dc.identifier.issn | 00220248 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/87491 | |
dc.description.abstract | The effect of Mg2+ on the kinetics of calcite crystal growth was investigated using calcite-seeded solutions with a pH-stat system. Five different solution compositions with the same degree of supersaturation with respect to calcite but different CO3 2-/Ca2+ molar ratios were employed in this study. In the presence of Mg2+, calcite crystal growth rates showed a linear decrease with increasing Mg2+ concentration for the five different solutions employed. By normalizing the crystal growth rate in the presence of Mg2+ to that in the absence of Mg2+, the rate reductions in the five solutions converge to a single line when plotted against the molar ratio of Mg2+/Ca2+. The widely used "empirical degree of supersaturation model" and the simple "Langmuir adsorption model" cannot explain the observed effects of the Mg2+/Ca2+ ratio on the inhibition of calcite crystal growth. Instead, a competitive Langmuir adsorption model involving Ca2+ and Mg2+ was shown to better fit the experimental data. © 2009 Elsevier B.V. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jcrysgro.2009.09.041 | |
dc.source | Scopus | |
dc.subject | A1. Inhibition | |
dc.subject | A1. Langmuir model | |
dc.subject | B1. Calcite | |
dc.subject | B1. Magnesium | |
dc.subject | B3. Crystal growth | |
dc.type | Article | |
dc.contributor.department | DIVISION OF ENVIRONMENTAL SCIENCE & ENGG | |
dc.description.doi | 10.1016/j.jcrysgro.2009.09.041 | |
dc.description.sourcetitle | Journal of Crystal Growth | |
dc.description.volume | 312 | |
dc.description.issue | 1 | |
dc.description.page | 136-140 | |
dc.description.coden | JCRGA | |
dc.identifier.isiut | 000272900800025 | |
Appears in Collections: | Staff Publications |
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