cadmium phosphate is an inorganic compound, often used as a reducing agent. It has a molecular formula Cd3(PO4)2 and is in the tetragonal crystalline form.
Its oxidation state is +6 and its reactivity is high. It is found naturally in all types of soils and as a component of some biosolids, to varying degrees in phosphate fertilizers.
The formation of Cd3(PO4)2 as a soluble mineral is an important mechanism of immobilization of P in contaminated soils. It also helps to maintain the pH of a soil solution under acidic conditions. It is a common method to reduce Cd levels in contaminated soils and can be used to evaluate the effects of fertilizer amendment on crop performance and environmental quality.