Magnesium Hydroxide Synthetic grade Magnesium Hydroxide Magnesium Oxide Wollastonite and other minerals
1. Wollastonite is a typical metamorphic mineral, the chemical molecular formula is CaSiO3, and structural formula is Ca3 [Si3O9], the theoretical chemical compositions: CaO: 48.25%, SiO2:51.75%.
Wollastonite is a thin plate-like crystal of triclinic crystal system, and belongs to a chain
silicate. Its special crystal structure determines its properties, it with the advantage of non-toxic, acid and alkali resistant; low hygroscopicity, oil absorption, conductivity; good insulation; thermal stability and dimensional stability good, excellent mechanical properties and electrical characteristics.
2. Physical properties:
Item | Specification |
Mesh | 80~5000 |
Ratio of length to diameter (L/D) | 2:1~25:1 |
Whiteness | 75~92 |
Density (g/cm3) | 2.95 |
Melting point (℃) | 1450 |
Hardness (Mosh) | 4.5~5.0 |
3. Chemical properties:
Element | SiO2(%) | CaO(%) | Fe2O3（%） | Al2O3(%) | MgO(%) | L.O.I. (%) | PH |
Specification | 40~52 | 35~45 | 0.3~1.2 | 0.1~1.0 | 0.1~2.0 | 1~12 | 9 |
**Customized the product for customers!
4. Applications:
Wollastonite ceramics; wollastonite plastic & rubbers; wollastonite paints & coating;wollastonite white cement & construction boards;
Wollastonite uses: Rubber, plastics, glass fiber, paints, coating, pigments, white cement, construction boards, Ceramic glaze, architectural ceramics, Continuous casting mold powder, insulating covering powder, particle mould powder, tundish covering flux, welding material, slag modifier (calcium silicate), refractory materials, Paper-making, etc.
5. Package& Storage:
Package: | 20kg/25kg per bag; 400~1000kg per big bag; With pallet or not. |
Storage: | Stored in a cool and dry well, keep away from moisture and strong light. |
