Gypsum

Gypsum Powder is a mineral that occurs in nature. The term phosphogypsum is used to specify the particular gypsum arising from the acidulation of phosphate rock, because it contains trace amounts of many of the mineral impurities that accompany phosphate rock. The use of waste phosphogypsum for other purposes has been widely explored. Plasterboard, plaster and cement are the main possibilities, but it is also possible to extract sulphuric acid from phosphogypsum. Gypsum and phosphogypsum are also used in large quantities as a soil amendment for sodic soils. Gypsum is an excellent and economic road-making material, and large quantities of phosphogypsum could be used for this purpose. Uses : Used as filler in paper, paints, nutrient in growing yeast, insecticides Treatment of soil particularly those used for leguminous crops and in the culture of groundnuts When mixed with manure, it acts to stabilize the volatile and dissolved nitrogenous compound, thus preventing their loss by volatilization and leaching. The major use in arid climate is neutralization of black alkali soils by the reaction with alkali carbonates that cause this condition For manufacture of Plaster of Paris For Manufacture of fire proof wall boards for building construction For manufacturing cement