L-谷氨酸和 L-天冬氨酸溶液中方解石和文石的溶解和表面反应比较。

Comparison of dissolution and surface reactions between calcite and aragonite in L-glutamic and L-aspartic acid solutions.

机构信息

Korea Institute of Geoscience and Mineral Resources, 92 Gahwangno, Yuseung-gu, Daejeon 305-350, Korea.

出版信息

Molecules. 2010 Jan 11;15(1):258-69. doi: 10.3390/molecules15010258.

DOI:10.3390/molecules15010258

PMID:20110889

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6257063/

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.

摘要

我们研究了方解石和文石在 L-谷氨酸（L-谷氨酰胺）和 L-天冬氨酸（L-天冬氨酸）氨基酸溶液中的溶解和表面反应，溶液的酸性较弱，pH 值大于 3。方解石和文石的表面反应与溶解有关。两种溶液中方解石都发生溶解，但溶解受到 Ca-羧酸盐吸附的限制。氨基酸溶液中既不溶解也不发生文石反应，因为晶体表面由难以溶解的结构组成。