| abstract |
- surface BET : 190 - 340 m2/g - surface CTAB : 180 - 280 m2/g - teneur en sodium résiduel <500 ppm - Vo > 4,2 - pH : 3,5 - 6 - Taille des particules estimée par < 0,05% refus au tamis de 45µ The present invention relates to a new silica which is characterized in that it has the following characteristics: - BET surface: 190 - 340 m2 / g - CTAB surface: 180 - 280 m2 / g - residual sodium content <500 ppm - Vo> 4.2 - pH: 3.5 - 6 - Particle size estimated by <0.05% rejection with a 45µ sieve n n n It applies in particular as a pigment, filler. |