Amorphous silica that resembles white sand and is used as a drying and dehumidifying agent, as a catalyst and catalyst carrier, as an anticaking agent in cosmetics, and in chromatography.

• 硅胶：一种非晶体硅石，与白沙相似，用作干燥剂和脱湿剂，也可作催化剂和催化剂载体在化妆品中作凝结剂，还用于层析法