The synthesis of silica from rice husk ash for color crystal glass

Abstract

The aim of this work was to synthesis the glass crystals by using silica from rice husk ash (RHA) as a raw material. First, rice husk was synthesis by heated at various temperatures between 1000-1200 °C and then, silica which was heated at the first step was used to be the raw materials for glass crystal. From the result shows that RHA with heated at 1000-1200 °C could be use for silica to synthesis crystals glass. X-ray Diffraction pattern demonstrated that all of condition to heat RHA showed the same results, Cristoballite, Tridamite are the phase formation appeared all of materials. The crystal glass show blue colour. The optimum condition with show the highest density and density value were obtain with the sample of heated RHA at 1000 °C