Zinc Oxide is the oxide of zinc metal. Zinc oxide is an energetic flux, it lowers the melting temperature and gives way to very bright glass with good mechanical resistance, a lower expansion coefficient and a high surface tension value. Zinc Oxide is used in the making of glasses, glazes, frits, porcelain, enamels, and magnetic ferrites as it imparts brilliance and cluster.
Titanium is the strongest white pigment known for many uses, in ceramics the whiteness (and opacity) it imparts to glazes is due to its tendency to crystallize during cooling. It can be used as an additive to enliven (variegate, crystallize) the color and texture of glazes. It is also used to remove watermarking in wall tiles.
Soda ash is the trade name for sodium carbonate. It is a white anhydrous powder that is available in powdered or granular material. It is essentially used in the manufacturing of glass, detergents and other industrial products. It is one of the most widely used commodities. Soda ash is also used to control pH in water treatments, neutralising acidity and eliminating problems of corrosion.