Ferric phosphate
Ferric phosphate is an inorganic compound with the formula FePO₄. It is one of the several iron phosphates and is commonly encountered in the form of a hydrate or as an anhydrous material. Ferric phosphate is used in various applications, including as a fertilizer, a pesticide, and in water treatment.
Chemical Properties[edit | edit source]
Ferric phosphate is composed of iron (Fe), phosphorus (P), and oxygen (O). The compound typically forms a crystalline structure and can exist in several hydrated forms. The anhydrous form is a white to tan-colored powder, while the hydrated forms can appear as colorless crystals.
Synthesis[edit | edit source]
Ferric phosphate can be synthesized through several methods, including the reaction of ferric chloride (FeCl₃) with sodium phosphate (Na₃PO₄) in an aqueous solution. The reaction produces ferric phosphate and sodium chloride (NaCl) as a byproduct.
Applications[edit | edit source]
Fertilizer[edit | edit source]
Ferric phosphate is used as a fertilizer to provide essential nutrients to plants. It is particularly useful in soils that are deficient in phosphorus and iron.
Pesticide[edit | edit source]
Ferric phosphate is also employed as a pesticide, specifically as a molluscicide to control slugs and snails in agricultural and garden settings. It is considered environmentally friendly and safe for use around pets and wildlife.
Water Treatment[edit | edit source]
In water treatment, ferric phosphate is used to remove phosphate ions from wastewater. This helps in preventing the growth of algae and maintaining the ecological balance in water bodies.
Related Compounds[edit | edit source]
Ferric phosphate is related to other iron phosphates, such as ferrous phosphate (Fe₃(PO₄)₂) and ferric pyrophosphate (Fe₄(P₂O₇)₃). These compounds have similar properties and applications but differ in their chemical composition and oxidation states of iron.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD