pre-cipitated barium sulfate

pre-cipitated barium sulfate CAS.NO:7727-43-7 Purity:98.0% Molecular:BaSO4 Appearance : White oblique side crystallization or white amorphous powder. Package : Double-lined or polyethylene bags, jackets composite plastic woven bags, packaging, weighing 50kg bag.Tasteless, nontoxic. Soluble in hot concentrated sulfuric acid, do not dissolve in water, ethanol and acid. When dry caking. Industrial precipitation of barium sulfate itself not toxic, but if the content of soluble compounds of barium can lead poisoning.Application areas mainly in paints, inks, paints advertising, cosmetics, poly ethylene oxide resin and filler for the weight gain on. Rubber products both for filler, reinforcement role began. Glass products for clarifying agents, defoaming and began to increase luster role. Inorganic used for the production of other industrial barium salts such as Barium hydroxide, barium carbonate, barium chloride and other raw materials. The timber industry wood grain production printing plate for the grounding and modulation printing expletive. Organic Synthesis as green color pigments and fillers amylin production physique. Technical IndexesExcellent First gradeQualified pre-cipitated barium sulfate content % ≥ 98.0 97.0 95.0 Volatile matter(105°C) % ≤ 0.30.30.5 Water-insoluble content%≤ 0.3 0.3 0.5 Fe content %≤ 0.004 0.006 - PH(100g/Lsuspension) 6.5-9.05.5-9.05.5-9.5 whiteness 94 92 88 5um%≥ 60 65 70 2um%≥ 25 40 50 Powder size distribution 10um % ≥ 80 85 90 Fineness (43umresidue on sieve) %≤ 0.1 0.2 0.5 oil absorption g/100g 15-30 10-30 10-30