Brand:Tokuyama
Specific surface area:200ÿ240 mÿ2ÿ /g
(BET) Bulk density:40 g/L (approximately)
pH (4% suspension):4.2
SiO2 purity (dry basis): > 99.9 %
Cl:< 50 ppmÿ
Al:< 20 ppmÿ
Fe:< 20 ppmÿ
325 mesh coarse: < 0.01 %
grain moisture (loss on drying method, %):< 1.5 %
