Wholesale Wollastonite Lump For Industrial Use With Best Quality
Wollastonite is an ideal white, reinforced, founctional material with good performance as followed:
- Uniqyue acicular structure, a good natural mineral fiber.
- Highly white, non-toxic, smelless, friendly to people&the environment
- Stable under high temperature and good electrical conductivity
- Low water absorbtion and oil absorbtion
Chemical analysis
Whiteness | SiO2 | CaO | Al2O3 | Fe2O3 | TiO2 | MgO | L.O.I |
>80 | 49-53 | 43-45 | 0.26max | 0.35max | 0.02max | 1.3max | 1.5-3 |
The physical properties of wollastonite
Iterm | Result |
Granularity(mesh) | 80-2500 |
Ratio of length to diameter(L/D) | 8-25 |
absorption oil value (g/100g) | 20-26 |
Whiteness(%) | >80 |
Refraction(%) | 1.63 |
Density(g/cm3) | 2.95 |
Expantion coefficient(mm//mm℃) | 6.5×10-6 |
Melting point( ℃ ) | 1450 |
Hardness(Moh's) | 4.5-5 |
Sedimentation value(ml/200m) | 40-90 |
Application
- Ceramic industry : Glazed ceramic, Sanitary porcelain, porcelain for daily use.Artistic porcelain, Electric ceramics, High-frequency and loe-loss wireless electric ceramics, Chemical ceramic, Glaze and Coloring materials, Etc
- Chemical industry: As the Filling material for paint, coating, Pigment, Rubber, Plastics and Resin
- Metallurgy industry: The Protecting slag and covered agent of heat insulation and metallurgy
- Building industry: As the Auxiliary building material that substitute asbestos, as the Raw material for white cement and acid-proof and Alkali-resisting microcrystalline glass, as the Flux of the glass and Filling material of new-type wall.
- Electronic industry : As Electronic insulating material, as the Coatings for fluores centlamp, Display tube do the television set and X-ray fluorescent screen.