TOP > What is Talc?
Talc ore is mined in the mineral state with layered structure and can be white, pink, light green, or gray in color. When it is pulverized, white or gray powder is obtained.
The chemical name of talc is hydrous magnesium silicate (Mg3Si4O10(OH)2).
Talc has a true specific gravity of 2.7 and Mohs hardness of 1, which is the softest inorganic mineral that offers excellent heat resistance and chemical stability.
It is produced in many parts of the world but the high purity talc ore with high industrial value comes mainly from China, India, and Pakistan.
Main applications of Talc
- Fillers (for rigidity, heat resistance, and dimensional stability improvements) and crystal nucleating agents
- Paper making
- Fillers, pitch control agents, and coating agents
- Extender pigments (viscosity and gloss adjustments) and powder paints
- Electronic components
- Laminates, moldings, resist ink, and adhesive
- Ceramic glaze and honeycomb ceramic material
- Fillers (heat resistance and reinforcement improvements) and anti-sticking agents
- Foundation, body powder, eye shadow, and lipsticks
- Tablet excipients and lubricants
- Gum base and production aids (stick prevention)
- Anticaking agents for fertilizer and pesticide carriers