Amorphous silica particles having a high absorption capacity and distinctive structural properties

摘要

The present invention provides amorphous silica particles having high oil absorbency and high structural characteristics, wherein the oil absorbency is hardly decreased even when a high load is applied to the amorphous silica particles. In particular, amorphous silica particles are provided, wherein the maximum value of ΔVp/ΔRp (where Vp is the pore volume [mm3/g] and Rp is the pore radius [nm]) is 20 mm3/nm•g-1 or more in the pore distribution curve obtained by a benzene adsorption isotherm, and the pore peak radius when the ΔVp/ΔRp value is maximum is from 20 nm or more to 100 nm or less.