Description BS-668 is processed by high purity barite. It has excellent chemical inertia. It can't be dissolved in water and acid, except hot concentrated sulfuric acid. It is widely used in painting, plastics, thermosetting plastic powder coatings, rubber, glass, etc. Technical data Testing item Method Result Barium content ≥97% Whiteness Whiteness instrument ≥92% Oil absorption 11 13g/100g Moisture ≤0.30% Water-solubility ≤0.10% Specific gravity Scale 4.3 4.4 t/m3 PH value Precision test paper 7±0.5 Particle size distribution Average particle size(d50) Laser granulometer 1.43μm Maximum particle size Laser granulometer 6μm Packing: 25Kg/bag