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Application of Solution Calorimetry to the Prediction of 20.15[(2.038 + x)SiO<sub>2</sub>-(1.457 － x)Na<sub>2</sub>O]-2.6-P<sub>2</sub>O<sub>5</sub>-26.95CaO Glass Bioactivity
Laboratoire de Chimie-Physique, UFR-SSMT, Université de Cocody, Abidjan, C?te d’Ivoire
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- 2 Laboratoire de Chimie-Physique, UFR-SSMT, Université de Cocody, Abidjan, C?te d’Ivoire
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Advances in Chemical Engineering and Science·Volume 03 (2013)·Pages 123–129·Published 29 April 2013·DOI10.4236/aces.2013.32015
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Abstract
Bioactive glasses in the system SiO 2 -Na 2 O-CaO-P 2 O 5 were prepared by the conventional melting process at a high temperature in an electric furnace. The densities of the glasses as well as their glass transition temperatures were measured experimentally. Also, the glasses were characterized by solution calorimetry at 298 K in an acidic solvent consisting of HF (6 M) and HNO 3 (4 M). A simulation of the bioactivity properties of these obtained glasses was carried out by thermodynamic calculations, with the purpose of understanding the in vitro results obtained.
KeywordsBioactive GlassSolution CalorimetryFree Enthalpy of FormationReaction Number
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