Do you know the specific surface area of silica?
Hits: 242
img
Many people know about white carbon black, but few people know about the specific surface area of white carbon black. The editor will explain the relevant knowledge in this area to everyone.
Specific surface area refers to the total area per unit mass of material. There are two categories: external surface area and internal surface area. National standard unit: ㎡/g
Ideal non porous materials only have surface area, such as Portland cement, some clay minerals particles, etc; Porous and porous materials have both external and internal surface areas, such as asbestos fibers, rock (mineral) wool, diatomaceous earth, etc.
White carbon black is a non porous material, so it can only be characterized by its external specific surface area.
