Ion-exchange properties of strontium hydroxyapatite under acidic conditions

被引：8
|
作者：
Sugiyama, S [1 ]
Nishioka, H
Moriga, T
Hayashi, H
Moffat, JB
机构：
[1] Univ Tokushima, Fac Engn, Dept Chem Sci & Technol, Tokushima 770, Japan
[2] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada
[3] Univ Waterloo, Guelph Waterloo Ctr Grad Work Chem, Waterloo, ON N2L 3G1, Canada
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 1998年 / 33卷 / 13期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1080/01496399808545042
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The ion exchange of strontium hydroxyapatite (SrHAp) with Pb2+ has been investigated under acidic conditions at 293 K. The addition of various acids to the exchanging solution enhanced the exchange capacity in the order HCl > HBr > HF > HNO3 > no acid, corresponding to the formation of halogen apatites with the former three acids or hydrogen phosphate with HNO3. Since the ion-exchange capacity of SrHAp under nonacidic conditions is higher than that of chlorapatite, the aforementioned observations can be attributed to the participation of the protons introduced by the acids.
引用
收藏
页码：1999 / 2007
页数：9
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