physico-chemical properties | titaniferous sand | calcium silicate |
pH | 6.4 | 12.3 |
pHpzc | 8.75 | 9.2 |
Absolute density (kg/m3) | 4054 | 1980 |
Bulk density (kg/m3) | 2500 | 400 |
Porosity (%) | 38 | 79 |
Specific surface (m2/g) | 13.4 | 314.2 |