| abstract |
0.1m 2 / g~7m 2 / BET surface area of g, packing density of 35lb / ft 3 ~55lb / ft 3 , 8mg loss / 100,000 rotational ~25mg loss / 100,000 rotation Einlehner abrasion value, 0.7 cc / g Disclosed are silica particles having a total mercury intrusion pore volume of .about.1.2 cc / g, and stannous compatibility of 70% to 99%, and methods of making these silica particles. |