... widely used in ceramics, enamels, pigments, paints, cement, terrace, fireproof material, Specifications:1) Cr6 + ≤ 100ppm 2) Average particle size: approx. 1.5 ... : widely used in ceramics, enamels, pigments, paints, cement, terrace, fireproof material, polishing paste and metal chrome industry Chrome Oxide Green