Iron nitride is an inorganic compound, gray powder, insoluble in water, and may release ammonia after heating or exposure to humid environment.
The appearance of iron nitrides is basically grey powder. Iron has four kinds of nitrides: Fe2N, Fe3N1 + x, Fe4N and Fe16N2. They are crystalline metallic solids.
The chemical property of iron nitride is that nitrides composed of transition metals of the 7th and 8th groups decompose at relatively low temperatures. The molecule nitrogen of Fe2N in iron nitrides will lose and decompose at temperatures above 400 C, and form low nitrogen content iron-nitrogen compounds.
The main use of iron nitride is that colloidal magnetic iron nitride solution containing nanoparticles can be used to manufacture magnetic fluids. At the same time, iron nitride can also be used as a catalyst, which has good catalytic activity for Fischer-Tropsch synthesis and ammonia synthesis.