Talc is the word’s softest mineral. Although all talc ores are soft, platy, water repellent and chemically inert, no two talcs are quite the same. Talc is a vital Part of everyday life. The magazines we read, the polymers in our cars and houses, the paints we use and the tiles we walk on are just some of the products that talc enhances.
Talc is a hydrated magnesium sheet silicate with the chemical formula Mg3Si4O10(OH)2. The elementary sheet is composed of a layer of magnesium-oxygen/hydroxyl octahedral, sandwiched between two layers of silicon oxygen tetrahedral. The main or basal surfaces of this elementary sheet do not contain hydroxyl groups or active ions, which explains talc’s hydrophobicity and inertness.
TALC Technical and Physical Details
Sr. No. Parameters : Percentage
1. Lol : 4-6
2. Cao : 0-1.5
3. MgO : 30-32
4. Sio2 : 60-63
5. Fe2o3 : Less Than 1
6. Al2o3 : Less Than 0.5
7. CaCo3 : 2-3
8. pH(@10 %Sol) : 8.5-9.5
9. Whiteness : 84 - 97
10. Particle Size/Mesh Size : 300, 400, 500, 700 And 20 Micron
11. Appearance : Free Flowing White Powder
Application : Paint, Plastic, Automotive Plastics, Paper, Rubber etc.
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