barium sulphate

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barium sulphate
Posting date : Aug 01, 2006
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28-
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Blanc finetm bsp is a chemically synthesized barium sulfate product (blanc fixe) refined through special manufacturing processes with highly pure barium salt and sodium sulfate as its raw materials. Its grain sizes are under strict control in the course of reactions and synthesis and content of impurities is minimized. It features low specific weight, gentle and stable nature, narrow distribution of grain sizes, extremely good light fastness, weathering resistance and other outstanding chemical properties. The uniquely spherical or near spherical (d50<1.2um)ultra-fine barium sulfate crystal grains of blanc finetm bsp are provided with big specific surface areas, thereby effective increasing or magnifying the light reflecting area in coating. Therefore it is widely applied in the formula system of high-gloss products. Blanc finetm bsp may be used for thermoplastics to improve the rigidity, hardness and abrasion resistance of plastic products. Specifications blanc finetm bsp-f Baso4 content (din. En. ISO.3262, pt.2) >98.00% Mean grain size d50 (sc. Method) 3.00um Oil absorption (din. En. ISO.787, pt.10) 15g/100g Dry brightness (iso.7724) >95 Ph value (din. En. ISO.787, pt.9) 7-9 Volatility at 105 (din. En. ISO.787, pt.2) <0.15

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