Supply First Grade Sepiolite Rough Stone
Brief Introduction
Sepiolite is a clay mineral of fibrous magnesium silicate. It is a hydrous aluminum-magnesium silica with chain structure. Usually the color is white, gray, pale yellow etc. Sepiolite is opaque and lusterless. It's specific gravity is 1-2.2g/cm3, the hardness is 2-2.5, and it's possess good quality of fireproof with the melting point of 1500-1700℃.
1.Physical Property of sepiolite/sepiolite fiber
Fiber type | Specific gravity | Tensile strengh |
longitudinal fiber | 2.0-3.2 | 892.4-1283.7MPa(medium strength) |
Therminal conductivity | Electical resistivity | Heat resistance |
0.038-0.046W/m.K | Pv=5.9×106(Ω.cm) | Dehydration temperature:400-500°c Melting point:1500-1700°c |
2.Chemical Composition
Sample No | Test Iterm | Unite | Method | Results | MDL |
SD1406072 | SiO2 | % | EDXF | 58.09 | 0.05 |
Al2O3 | % | 0.09 | 0.05 | ||
Fe2O3 | % | <0.05 | 0.05 | ||
CaO | % | 10.67 | 0.05 | ||
MgO | % | 28.24 | 0.05 | ||
TiO2 | % | <0.05 | 0.05 |