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It is a black powder 15 to 20 mesh no larger than 25. It will be used as a filter by flowing gas through it and removing h2s. The iron oxide from the Fe203 and the sulfide from the h2s form an insoluble non toxic iron sulfide.Iron(II) oxide, also known as ferrous oxide, iron oxide/oxidized iron or more commonly rusted iron, is one of the iron oxides. It is a black-colored powder with the chemical formula FeO. It consists of the chemical element iron in the oxidation state of 2 bonded to oxygen. Iron(II) oxide should not be confused with rust, which usually consists of hydrated iron(III) oxide (ferric oxide). Iron(II) oxide is an example of a non-stoichiometric compound and the ratio of the elements iron and oxygen can vary, samples are typically iron deficient with a compositions ranging from Fe0.84O to Fe0.95O.[2] high purity fe203, ferrous oxide high purity Fe203 15 to 25 mesh
