6 Zirconium Chemicals-Namely, Zirconium Oxide, Zirconium Silicate, Zirconium Sulfate, Zirconium Hydroxide, Hydrous Zirconium Carbonate, Sodium Zirconium Silico-Sulfate, Sodium Zirconium Lactate, and Compositions Containing Zirconium Compounds, Particularly Useful for Glass Polishing