Ligand Substitution and Complex Formation in Hydroxyapatite Sol-Gel System

Calcium diacetyl hydrogen-phosphonate complex was formed in situ during maturing of a solution aimed for hydroxyapatite (HAp) production. Since the purity of HAp depends on slight changes of the stoichiometry, the quantitative transformation of the phosphorous precursor into a mixed diacetyl hydroge...

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Bibliographic Details
Published in:Key Engineering Materials 2001-11, Vol.218-220, p.79-84
Main Authors: Kannangara, G.S.K., Milev, Adriyan, Ben-Nissan, Besim
Format: Article
Language:English
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Summary:Calcium diacetyl hydrogen-phosphonate complex was formed in situ during maturing of a solution aimed for hydroxyapatite (HAp) production. Since the purity of HAp depends on slight changes of the stoichiometry, the quantitative transformation of the phosphorous precursor into a mixed diacetyl hydrogen-phosphonate anhydride and subsequent chelation to calcium ions is considered to be both rate-determining step and a critical factor controlling the purity of the final product.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.218-220.79