| abstract |
To provide a silica that is superior in terms of fluidity, oil absorption ability, and compression moldability to conventional silica used as a pharmaceutical additive, and is suitable as an additive for formulations such as pharmaceuticals.To provide a porous silica particle composition having the following properties:(1) a BET specific surface area from 250 to 1,000 m<sup>2</sup>/g;(2) an average particle diameter from 1 to 150 µm;(3) a pore volume from 0.1 to 8.0 cm<sup>3</sup>/g; and(4) an oil absorption capacity from 2.2 to 5.0 mL/g. |