Application of Solution Calorimetry to the Prediction of 20.15[(2.038 + x)SiO₂-(1.457 － x)Na₂O]-2.6-P₂O₅-26.95CaO Glass Bioactivity

Amadou Kouyate, Ange Privat Ahoussou, Jacques Rogez, Pierre Benigni

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Laboratoire de Chimie-Physique, UFR-SSMT, Université de Cocody, Abidjan, C?te d’Ivoire.

DOI: 10.4236/aces.2013.32015                

Abstract

Bioactive glasses in the system SiO₂-Na₂O-CaO-P₂O₅ 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 HNO₃ (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.

Keywords

Bioactive Glass; Solution Calorimetry; Free Enthalpy of Formation; Reaction Number

Conflicts of Interest

The authors declare no conflicts of interest.

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