Talc Powder

Also known as Soapstone, Talc Powder is hydrated silicate of magnesium (Mg₃Si₄O₁₀(OH)₂). The Talc Powder is the softest mineral with characteristic soapy feel and 1 moh’s scale of hardness. The Talc Powder can be easily scratched and cut by one’s nails. General Properties

• It is neither explosive nor flammable.
• Melting point of Soapstone is 1500^oC.
• Pearly luster and its platyness gives excellent opacity to the end products Steatite, Talc, Soapstone are the three terms used in trade for one and same mineral.
• Soapstone is practically insoluble in water and in weak acids and alkalis.
• Above 900^oC, Soapstone progressively loses its hydroxyl groups and above 1050^oC, it re-crystallizes into different forms of enstatite (anhydrous magnesium silicate).
• Although it has very little chemical reactivity, talc does have a marked affinity for certain organic chemicals, i.e. it is organophilic.

• Appearance : White fine smooth powder
• Sp. Gravity : 2.7 to 2.9
• Bulk Density : 0.5%
• Oil Absorption Value : 35 to 40%
• Hardness : 1 (Mohs)
• Moisture & Volatile Matter : 0.5% by wt. (105 deg. C)
• Water Soluble Matter : Max 0.5%
• pH of 10% Aqueous Solution : 8 to 10
• Minimum 88% combined magnesium calcium silicate

• Paper
• Plastics
• Paints
• Ceramics
• Foundries
• Pharmaceuticals
• Dal Mills
• Cosmetics
• Soaps and Detergent
• Pesticides
• Other Uses : It is used in Wood stoves, Cooking slabs, Carving of Chinese seals, Sculpture, Shaping of pots and Welding Electrodes.

• Good surface quality
• Lower mould shrinkage
• Easier processing
• Maximum Loading

• Excellent scrub resistance
• Reduced sagging
• Good coverage
• Higher loading
• Water resistance