It has three crystal state, monoclinic, hexagon and cubic. Its appearance is white powder. Almost insoluble in water. Decomposed when mixing with acid. Forming barium sulfate when combining with sulphuric acid. Decomposed barium oxide of 1400 . Tiny absorption of moisture toxic. Uses: Carbonate in iron and steel induction of moisture toxic. Of barium salts optical glass paints ceramic. Enamel oil paints rubber. Pigment welding rod fireworks used in electronic industry as purifying agent of water and pesticide rat, etc. Packing: in 25kg/1000kg pp bags.
Items Property First grade Second grade Third grade BaCO3 % 99.2 98.5 98.0 Moisture % 0.30 0.30 0.30 Reluctant matter % 0.05 0.10 0.15 Residue % 0.20 0.35 0.50 Fe % 0.004 0.008 0.012
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