Compositional Effects On The Iron Redox State In Soda-Lime-Silica Glasses

As the soda (Na20) or lime (CaO) content increases at the expense of silica (SiO2) content in soda-lime-silica glass compositions, network modifers replace network formers. This compositional change results in a depolymerization of the glass structure, an increase in the oxide ion activity of the melt, and an increase in the melt basicity.