Preparation of hydroxyapatite by neutralization at low temperature - influence of purity of the raw material
Preparation of hydroxyapatite by neutralization at low temperature - influence of purity of the raw material
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DOI：
10.1016/s0032-5910(99)00009-1
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发表时间：
1999-06-01
影响因子：
5.2
通讯作者：
Biscans, B
中科院分区：
文献类型：
--
作者：
Bernard, L;Freche, M;Biscans, B
研究了低温制备羟基磷灰石-Ca-10(PO4)(6)(OH)(2)-的方法。这种简单且无污染的方法包括用正磷酸溶液中和石灰悬浮液 (Ca(OH)(2))。初始石灰颗粒的化学和物理性质对生产的羟基磷灰石的质量有很大影响。本文通过 X 射线衍射、红外光谱、扫描电子显微镜、尺寸分析、比表面积和化学分析对几种石灰进行了表征和测试。石灰中所含的杂质中，镁离子对羟基磷灰石的形成影响很大。羟基磷灰石沉淀物的化学计量及其煅烧后的纯度取决于原材料的质量。 (C) 1999 Elsevier Science S.A. 保留所有权利。
A method to prepare hydroxyapatite-Ca-10(PO4)(6)(OH)(2)-at low temperature is studied. This simple and non-polluting method consists in neutralizing a suspension of lime (Ca(OH)(2)) with a solution of orthophosphoric acid. The chemical and physical properties of the initial lime particles have a great influence on the quality of the hydroxyapatite produced. Several kinds of lime were characterized by X-ray diffraction, infrared spectroscopy, scanning electron microscopy, size analysis, specific surface area and chemical analysis and tested in this work. Among the impurities contained in the lime, magnesium ion shows a strong influence on the formation of hydroxyapatite. The stoichiometry of the hydroxyapatite precipitate and its purity once calcinated depend on the quality of the raw materials. (C) 1999 Elsevier Science S.A. All rights reserved.