Raw Materials for Glass Manufacturing Process. Soda lime glass. Chalk soda ash (Na₂CO₃) and clean fresh sand. Potash lime glass. Chalk, potassium carbonate (K₂CO₃) and clean fresh sand. Potash lead glass. Litharge (lead monoxide PbO) or lead sesquioxide (Pb₃ O₄), Potassium carbonate (K₂CO₃) or pure sand. Common glass.