Customization: | Available |
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Application: | Paper Industry, Plastic & Rubber, Ceramic |
Product Name: | Wollastonite Powder |
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Wollastonite powder, with a chemical formula of Ca3(Si3O9), is a natural mineral substance characterized by its high content of calcium oxide (CaO, approximately 48.25%) and silicon dioxide (SiO2, roughly 51.75%). It exhibits a relative density ranging from 2.78 to 2.91 and boasts a white hue tinged with gray or red. The mineral occurs in the form of plate-like, radial, or fibrous aggregates, displaying a vitreous luster and a pearly luster on cleavage surfaces.
Under ultraviolet light, wollastonite powder emits a fluorescent or phosphorescent glow, and its melting point stands at approximately 1540°C. Renowned for its needle-like and fibrous crystalline structure, high whiteness, anhydrous composition, high melting point, low coefficient of thermal expansion, corrosion resistance, weathering resistance, and excellent mechanical and electrical properties, wollastonite powder finds extensive applications across various industries.
Item
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Value
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Place of Origin
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China
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Application
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Widely used in composite materials
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Hardness
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4.5-5
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SiO2 Content (%)
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51-53
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Fe2O3 Content (%)
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0.2
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Al2O3 Content (%)
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0.7% Max
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MgO Content (%)
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0.8
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CaO Content (%)
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41-43
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Whiteness
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88-90
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Refractive Index (%)
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1.63
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Packing
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25kg/bag;Customized packaging
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Port
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Tianjin
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Delivery time
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7-15days
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