Description
Silica Gel, Grade PA-400, 8-20 Mesh (Nominal) is a porous and granular form of silicon dioxide which is synthetically made from sodium silicate. In chemistry, the silica gel is used as a stationary phase in chromatography. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or res1-EArch purposes and typically are not suitable for human consumption or therapeutic use.