Sepiolite: (Si12)(Mg9)O30(OH6)(OH2)4.6H2
Prospectus: Sepiolite is a layer of chain structure of fibrous hydrous magnesium silicateclay mineral, And has a large specific surface area, High porosity, Has good adsorption, Rheology, Characteristics of plasticity and high temperature.
1. Sepiolite is Non-swelling, lightweight, porous clay with a large specific surface area;
2. Sepiolite has the highest surface area and porosity;
3. Outstanding sorption capacity and colloidal properties;
4. Valuable material for a wide range of applications;
5. Sepiolite unlike other clays- is not a layered phyllosilicate;
6. Sepiolites structure can be described as a quincunxvof talc-type sheets separated by parallel channels;
7. Chain-like structure produces needle- like particles instead of plate-like particles like other clays.;
8. Sepiolite has the highest surface area (BET, N2) of all the clay minerals, about 300 m2/g;
9. Sepiolite can absorb approximately its own weight of water and other liquids;
10. This structure is stable even in systems with high salt concentrations
Chemical composition
| |
Laboratory project |
Specifications |
| LOI |
5~9％ |
| SiO2 |
45.0~55.0% |
| Al2O3 |
5.0~9.0% |
| Fe2O3 |
|
| CaO |
27.0~33.0% |
| MgO |
3.0~7.0% |
| The shape and size distribution（%） |
+100μ |
5-% |
| +2mm |
0% |
| Sedimentation value |
130±20 |
| Viscosity（mpa.s) |
20±10 |
| The proportion of pine |
0.5±0.2 |
| Water content |
6-% |
| Other |
Uniform color，Absolute humidity，No impurities，No more than 10 mm from caking.
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