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  • Calcium carbonate

    Micronized calcium carbonate powders

    Calcium carbonate

    Calcite is a carbonate mineral and the most stable of polymorph of calcium carbonate (CaCo3). Calcite is presented to different industrial sectors like a filling material. At a rate of 15-30% of micronized calcium carbonate powder is added to cellulose in the production of writing tab paper, wall paper and cardboard.

    Being in high whiteness, cheapness and because of other technical features. Calcite has taken place of kaolin in paper industry. Since calcium carbonate is harmless mineral to environment, in paper industry, using calcium carbonate reduces consumption of cellulose and optical bleaching agents as well as ensures reduction of environmental pollution.

    Also in paint industry, interior paints, water-based paint system, 20-25% of calcium carbonate is used and using calcite cuts down consumption of TiO2 and lowers the cost of production.

    Mesh conversion table to inches and microns

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    Coated micronized calcium carbonate powders

    Coated micronized calcium carbonate powders are covered with a layer of stearic acid, a type of fatty acid, and are regarded as appropriate alternatives for polymeric raw materials in the production process.

    Usages of coated calcium carbonate have many advantages in plastic and coating. Day by day, more these processors are shifting to coated grades due to:

    • Low surface energy
    • High Hydrophobic effect, to get easy and homogeneous dispersion
    • Low oil,DOP and polymer absorption.
    • Increase in mechanical strength, to get high quality surface and high brightness.
    • AdaptationtoorganicEnvironments.
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    Micronized white Talcum powders

    Talcum is a mineral composed of hydrated magnesium silicate with the chemical formula   Mg3Si4O10(OH)2 . Its color ranges from white to green and it has a distinctly greasy feel.

    Its hardness changes from 1.0 to 1.5 Mohs hardness scale and its specific density between 2.58 – 2.83 gr/cm3. It holds monoclinic crystalline structure. It is a weak conductor to fire and acids.

    It gets solidified and its hardness increase upon high temperature treatment. Talc is used in many industries such as paper, plastic, paint and coatings, rubber, electric cable, pharmaceuticals, cosmetics, ceramics and etc.

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