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Molecules 2010, 15(1), 258-269; doi:10.3390/molecules15010258
Article

Comparison of Dissolution and Surface Reactions Between Calcite and Aragonite in L-Glutamic and L-Aspartic Acid Solutions

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Received: 17 November 2009 / Revised: 11 January 2010 / Accepted: 11 January 2010 / Published: 11 January 2010
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Abstract

We have investigated dissolution and surface reaction of calcite and aragonite in amino acid solutions of L-glutamic (L-glu) and L-aspartic acid (L-asp) at weak acidity of above pH 3. The surface reactions of calcite and aragonite were related with the dissolution. Calcite was dissolved in both solutions but the dissolution was limited by an adsorption of Ca-carboxylate salt. Aragonite was neither dissolved nor reacted in amino acid solutions because the crystal surface consisted of a hard to dissolve structure.
Keywords: calcite; aragonite; dissolution; adsorption; amino acid solution calcite; aragonite; dissolution; adsorption; amino acid solution
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ryu, M.; Kim, H.; Lim, M.; You, K.; Ahn, J. Comparison of Dissolution and Surface Reactions Between Calcite and Aragonite in L-Glutamic and L-Aspartic Acid Solutions. Molecules 2010, 15, 258-269.

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