Abstract
Preparation of hydroxyapatite was carried out by a homogeneous precipitation technique using hydrothermal reactions of Ca(EDTA)2‐ and PO4 3‐ at 130–250°C and pH 4–10. Hydroxyapatite and monetite were formed above pH 6 and below pH 4, respectively. Needle‐like hydroxyapatite was formed at high temperatures above 130°C. The length of the needle‐like hydroxyapatite crystal increased with increasing working solution pH and temperature.
Original language | English |
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Pages (from-to) | 349-353 |
Number of pages | 5 |
Journal | Journal of Chemical Technology & Biotechnology |
Volume | 57 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1993 Jan 1 |
Keywords
- calcium‐EDTA chelate
- homogeneous precipitation
- hydrothermal reaction
- hydroxyapatite
- needle‐like crystal
ASJC Scopus subject areas
- Biotechnology
- Chemical Engineering(all)
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Waste Management and Disposal
- Pollution
- Organic Chemistry
- Inorganic Chemistry