types of iron sulfide

　　 Iron sulfide is brown-black lumps, which is the product of iron oxide desulfurizer desulfurization. Iron sulfide is insoluble in water, but soluble in acidic aqueous solutions, and at the same time produces hydrogen sulfide; it is easily oxidized when heated in air, and sulfur can be obtained when heated to 1100°C in a vacuum. Ferrous sulfide can be produced by the direct reaction of two elements, or can be produced by the action of aqueous ferrous salt solution with alkali metal sulfide. It can be used to generate hydrogen sulfide gas in the laboratory; it can also be used in the ceramic and paint pigment industries.

　　    Ferrous sulfide is not a pure substance. It is mixed with coke powder and grease to form dirt, and its structure is generally loose. When ferrous sulfide is oxidized in humid air, divalent iron ions are oxidized to trivalent iron ions, and negative divalent sulfur is oxidized to tetravalent sulfur, releasing a lot of heat. Due to local temperature rise. Accelerate the oxidation of surrounding ferrous sulfide, forming a chain reaction. If carbon and heavy oil are present in the dirt, they are under the action of ferrous sulfide. Will burn quickly and release more heat. This kind of spontaneous combustion can easily cause fire and explosion accidents.

　　　　 Ferrous disulfide, FeS2 is a yellow crystal, is the main component of pyrite, and has diamagnetism. Pyrite has a melting point of 1171°C, a density of 5.0 g/cm3, and a cubic crystal lattice.

　　    Iron trisulfide, Fe2S3 is a yellow-green solid; the relative density is 4.3; it decomposes under strong heat; it is insoluble in water and decomposes into ferrous sulfide and sulfur in hot water; it decomposes in acid and emits hydrogen sulfide gas.

　　    Generally speaking, iron sulfide is a general term for a compound of iron and sulfur, mainly including ferrous disulfide, ferrous sulfide and iron trisulfide. I hope you can understand iron sulfide further by interpreting this information, and make full use of the value of iron sulfide through rational application of iron sulfide. Of course, if you still have doubts about iron sulfide, want to know more information about iron sulfide, or want to buy and apply iron sulfide, please contact our company, our company will provide satisfactory results according to your requirements service.