Talc

close box The applications which
can use this mineral are
highlighted. Please select
one to learn more.
Product Description
Benefits & Application Details

Introduction

 

Talc (magnesium silicate, chemical formula Mg3(OH)2/Si4O10)

Characterised by:

  • Lamellar nature: talc can be classified as either microcrystalline (length:thickness = 10:1) or macrocrystalline (length:thickness = 35:1)
  • Low Mohs hardness of 1 (being the softest mineral in the range)
  • Hydrophobic surface and, as a result, low water absorption
  • High brightness
  • High purity
  • High inertness in various media.

 

Basic properties

Property Value Unit
Moisture 0.2 [%]
pH 9 [-]
Hardness (Mohs) 1 [-]
Refractive index 1.57 [-]
Density 2.8 [kg/ dm3]

By using the appropriate micronisation technology, the Tital VT grades  are processed to various particle size distribution, maintaining the product’s characteristic lamellarity and high aspect ratio.

 

Due to its lamellar structure and hydrophobic nature, talc will provide barrier properties and good chemical resistance compared to conventional fillers.

 

Mechanical reinforcement: due to its lamellar structure, talc will mechanically reinforce the binder matrix.

Sibelco © 2020