Talc
CAS No: 14807-96-6
Talc is a naturally occurring, chemically inert mineral known for its softness, lamellar structure, and excellent flow and barrier properties.
Synonyms
Magnesium silicate hydroxide, Soapstone, Hydrated magnesium silicate
Formula
Mg₃Si₄O₁₀(OH)₂
CAS No
14807-96-6
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Properties
- Molecular weight 379.27 g/mol (based on Mg₃Si₄O₁₀(OH)₂)
- Aggregation state Solid (powder)
- Density ~2.7–2.8 g/cm³
- Boiling point Not applicable (decomposes)
- Melting point ~1500 °C (decomposes)
- Refractive index ~1.54
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Key applications
- Tablet disintegration aid and glidant in pharmaceuticals
- Functional filler in plastics and rubber
- Carrier in agrochemical formulations
- Barrier and anti-blocking agent in coatings
- Absorbent in cosmetics and personal care
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Industries
- Pharmaceuticals
- Plastics
- Coatings & Paints
- Personal Care & Cosmetics
- Agriculture
- Ceramics & Construction