Modified Super-Fine Precipitated Barium Sulfate Properties: With common properties of the ordinary BaSO4, they have finer powder appearance. The primary particle has a lesser average diameter and is distributed narrower scope. The particle, after surface treatment, has greatly improved the flow, the dispersion of powder and the powder's compatibility with applied surface. Technical Index Item Index Best Quality First Quality Content of Barium Sulfate (Calculated by Dry Basis), % ≥ 97.0 97.0 Content of 105°C Violate Matter, % ≤ 0.15 0.20 Whiteness, % ≥ 96.0 95.0 Oil Absorption, g/100g 10-25 10-25 PH Value(100g/L Suspended liquid) 7.0-9.0 7.0-9.0 Fineness (30um Screened Residue), % ≤ 0.05 0.10 Median Particle Diameter, um ≤ 0.6 0.6 Dispersion, um ≤ 15 20 Usage: As specialized functional filling, they are mainly used in powder coating, dye, paint, printing ink, plastic, rubber, storage battery, and so on and they can efficiently enhance the quality of the product.