chemical formula: CaSO4
( granular )
Drierite® is an all purpose drying agent for the efficient and rapid drying of air, gases, refrigerants, liquids and solids. It is composed of naturally occurring Calcium Sulfate, impregnated with Cobalt Chloride. Drierite® is blue when dry and changes to pink upon absorption of moisture. Drierite® can be regenerated simply by heating in an oven where it will return to its normal blue color.
MSDS ( Material Safety Data Sheet )