Ammonium fluorozirconate 98% min White crysta Used in the making of materal Zr , Zr compound, alloys, atomic energy , electrical material, fireproof material, electric vacuum material, firework, ceramic and glassused in the making of materal Zr , Zr compound, alloys, atomic energy , electrical material, fireproof material, electric vacuum material, firework, ceramic and glass Spec: Assay: 98% min Cl: 0.15% max SO4: 0.5% max Fe: 0.02% max