Kinetics and thermodynamics of ferrous-ferric equilibrium in sodium aluminoborate glasses |
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| Authors: | Ram Pyare P Nath |
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| Institution: | Dept. of Ceramic Engineering, Institute of Technology, Banaras Hindu University, Varanasi - 221005, India |
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| Abstract: | The oxidation-reduction equilibrium between ferrous and ferric iron in sodium aluminoborate glass melts having molar composition 15Na2O·10Al2O3·75B2O3 has been studied as a function of temperature. The reaction was observed to follow first order kinetics. The energy of activation for the above reaction was calculated. Equations previously suggested to represent the Fe2+–Fe3+ equilibrium were discussed and a new equation is proposed. The enthalpy of the reaction was ?8.80 kcal mol?1. |
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