Formation of calcium phosphates in aqueous solutions in the presence of carbonate ions

被引：47

作者：

Kapolos, J

Koutsoukos, PG ^{[1
]}

机构：

[1] Univ Patras, Inst Chem Engn & High Temp Chem Proc, ICE HT FORTH, GR-26500 Patras, Greece

[2] Univ Patras, Dept Chem Engn, GR-26500 Patras, Greece

来源：

LANGMUIR | 1999年 / 15卷 / 19期

关键词：

D O I：

10.1021/la981285k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The role of carbonate on the kinetics and physicochemical characteristics of the crystal growth of stoichiometric hydroxyapatite was investigated at 37 degrees C, 0.15 M NaCl ionic strength, and pH 7.40 at constant supersaturation. It was found that at low supersaturations the presence of carbonate ions at concentration as high as 0.1 mM had no effect on the crystal growth kinetics while at higher supersaturation (>3.8) the presence of carbonate ions resulted in reduction of the crystal growth rates and changed the dependence of the rates of crystal growth on the solution supersaturation from parabolic to linear. Carbonate was incorporated to the apatite growing on the seed crystals and caused changes in their morphology, favoring platelike formations.

引用

页码：6557 / 6562

页数：6