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  An experimental and theoretical investigation of the formation of hydroxyapatite particles prepared by an electrochemical method  
Diupload oleh : Heru Setyawan
Pengarang : A. Nur, H. Setyawan
Tahun : 2016
Dipublikasikan di : Journal of Chemical Engineering of Japan, 49(2), 144-151
Jenis Jurnal : Jurnal Internasional
Eksternal Link : http://https://www.jstage.jst.go.jp/article/jcej/49/2/49_15we130/_article
Bidang Penelitian : Advanced Ceramics
Abstrak : Electrochemical synthesis of hydroxyapatite particles was performed galvanostatically from a homogeneous solution of Na2H2EDTAˇ2H2O, KH2PO4 and CaCl2. The electrogeneration of OH− ions by water reduction at the cathode plays an important role in the formation of hydroxyapatite by an electrochemical method. The OH− ions induce the liberation of Ca2+ ions and the dissociation of phosphoric acid, which serve as the reactants for the formation of hydroxyapatite. We found that the final product obtained, i.e. brushite or hydroxyapatite (HA), corresponds to the pH of the solution. Brushite is formed when the pH is 7. Aging the suspension for 72 h at 40°C transforms brushite to HA even at pH
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