Restorative Dentistry and Endodontics
- Volume 19 Issue 1
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- Pages.27-44
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- 1994
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
THE EFFECTS OF pH, TEMPERATURE AND TIME ON THE SYNTHESIS OF HYDROXYAPATITE
pH, 온도 및 시간이 수산화인회석의 합성에 미치는 영향
- Lee, Hee-Joo (Department of Conservative Dentistry, College of Dentistry, Pusan National University) ;
- Hur, Bock (Department of Conservative Dentistry, College of Dentistry, Pusan National University)
- Published : 1994.03.10
Abstract
The purpose of this study was to determine the effects of pH, temperature and time on the synthesis of hydroxyapatite(HAP) by spontaneous precipitation under relatively physiologic condition. Specimens were obtained from aqueous system with various pH, temperature and experimental time. Chemical composition, crystallographic structure and crystallinity of the synthetic HAP were evaluated by Infrared spectroscopy and powdered X-ray diffraction method. The following results were obtained. 1. No precipitate was obtained under pH 5.5. 2. All the specimens were concluded as HAP except one that was obtained under the condition of pH 6.5,
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