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.
我们研究了在 pH 3 以上的弱酸性下,
方解石和
文石在
L-谷氨酸 (L-glu) 和
L-天冬氨酸 (L-asp)
氨基酸溶液中的溶解和表面反应。
方解石和
文石的表面反应为与解散有关。
方解石溶解在两种溶液中,但溶解受到
碳酸钙盐吸附的限制。
文石在
氨基酸溶液中既不溶解也不反应,因为晶体表面由难溶解的结构组成。