Used as Portland-cement retarder; tile and plaster; It is the source of sulfur and sulfuric acid; Also used in polishing powder and paints, dyeing and calico printing. It is likewise employed in zinc metallurgy. It is employed in drying industrial gases, solids and many organic liquids. In granulated form it is used as soil conditioner. Used for food additives in the soy manufacturing industry.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.