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.
1 Superphosphate is a fertiliser produced by the action of concentrated sulphuric acid on powdered phosphate rock. 2  Phosphorus (P) is frequently a limiting nutrient to the growth of pasture.3  Generally, soils in Australia are depleted in phosphorus due to weathering and erosion. Superphosphate (8.8% P) - This is produced by treating rock phosphate with sulphuric acid, and is the most commonly used phosphorus fertiliser. 2  Also used are double superphosphate (17.1% P), triple superphosphate (20.7% P), mono-ammonium phosphate (MAP,21.9% P), or di-ammonium phosphate (DAP, 20%P).