Additional threats to employees are posed by. the ease with which many corrosive chemicals ignite, explode or react with incompatible substances. In North Carolina, the N.C. Department of Labor enforces the federal Occupational Safety and Health Act through a. state plan approved by the U.S. Department of Labor.
Calcium sulfate (or calcium sulphate) is a common laboratory and industrial chemical. In the form of Î³- anhydrite (the nearly anhydrous form), it is used as a desiccant. It is also used as a coagulant in products like tofu. In the natural state, unrefined calcium sulfate is a translucent, crystalline white rock.
Ammonium sulphate is manufactured by reacting ammonium carbonate and powdered gypsum and the calcium carbonate sludge thus recovered as a by-product is utilized in the manufacture of cement. This is one of the greatest advantages in utilizing gypsum for fertilizer manufacture.