Silica gel is divided into: coarse-pore silica gel, B-type silica gel, fine-pore silica gel according to its pore size. Due to the different pore structures

Specific surface: refers to the surface area per gram of silica gel, including the sum of the internal micropore surface area and the external surface area

计量单位目粒度是指原料颗粒的尺寸, 一般以颗粒的最大长度来表示。网目是表示标准筛的筛孔尺寸的大小。在泰勒标准筛中,所谓网目就是2.54厘米(1英寸)长度中的筛孔数目,并简称为目