gypsum,gypsum

Name: Phosphogypsum
English name: phosphogypsum
Description: that is, phosphorus gypsum, are wet-process phosphoric acid production of a by-product. Because of the production process have different phosphorus gypsum (CaSO4 2H2O) and semi-water gypsum (CaSO4 1/2H2O). In addition to major components of calcium sulfate, it also contains a small amount of ground phosphate rock does not break down, free phosphate, iron phosphate, aluminum phosphate and silicate impurities such as fluoride. Than the pure may be used to make cement, sulfuric acid, ammonium sulfate, as well as raw materials for construction materials. Can also be used for certain alkaline soil, you can use one of water-soluble phosphorus pentoxide, but also improve the soil. Its lack of sulfate sulfur to the soil, is also necessary.