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What is the difference between phosphate and phosphorus ... Phosphorus is the element, atomic number 15 on the periodic table of the elements. It's a relatively soft nonmetal. Phosphate is a negatively charged ion made of phosphorus and oxygen, PO4. It can be bound to ammonia ions to form diammonium phosphate ( (NH4)2HPO4 ) a current chemical fertilizer. Phosphate Rock : EU Imports to be Ruled by Russian Suppliers? As for phosphate rock, it comes in two-forms: igneous and sedimentary. Igneous rocks are formed through the cooling of molten rock and contain low amounts of cadmium. Sedimentary rocks form over long periods of accumulation and contain microscopic amounts of cadmium. Theoretical and practical experience of calcium phosphate ... reservoir. On land, phosphate rock deposits are the primary source of phosphorus. Through natural and human induced erosion processes, phosphates from these rock deposits are washed into rivers, and eventually to the oceans, where they form shallow and deep ocean phosphate rock deposits. Animal    Read More