Description
Silica Gel, Davisil(R), Grade 643, 200-425 Mesh, 150A is a form of silicon dioxide made from sodium silicate. It is a granular and porous solid often used as a desiccant to control humidity and avoid spoilage. The GR is an EMD trademark and indicates this chemical reagent is suitable for use in analytical chemistry and that the product meets or exceeds American Chemical Society (ACS) requirements.