Phosphate rock - Phosphorus oxide P2O5

Phosphate rock is a crucial raw material used in the production of fertilizers It occurs in two primary geological forms: sedimentary and igneous Phosphate Rock Composition: Phosphorus (P) is the primary nutrient in phosphate rock and is crucial for plant growth and development It is typically reported as phosphorus pentoxide (P2O5) The phosphorus content in phosphate rock can range from 25% to 31% equivalent to 62-67.5 BPL% Calcium (Ca) is another essential element found in rock phosphate It plays a vital role in plant cell structure, root development, and nutrient uptake, it can range from 30% to 50% Carbonates (CO3) are common impurities found in phosphate rock, typically exist in the form of calcium carbonate (CaCO3) or magnesium carbonate (MgCO3) Silicates (SiO2) are another impurity often present in phosphate rock They can have positive effects on soil structure, water-holding capacity, and nutrient retention, it can range from a few percent to over 20%