Iron phosphide
Iron phosphide is a chemical compound of iron and phosphorus, with a formula of FeP. Crystals are isolated as grey needles.
Manufacturing of iron phosphide takes place at elevated temperatures, where the elements combine directly. Iron phosphide reacts with moisture and acids producing phosphine, a toxic and pyrophoric gas.
Iron phosphide is a good electric and heat conductor.
Below a Néel temperature of about 119 K, FeP takes on an helimagnetic structure.