Iron is an absolute requirement for most forms of life, including humans and most bacterials species. Plants
and animals all use iron, and it can be found in a wide variety of food sources.1 The industrial uses of Fe and
its compounds are numerous. 2 It is the major constituent in steel making. Several Fe oxide forms find use as
paint pigments, polishing compounds, magnetic inks, and coatings for magnetic tapes. The soluble salts are
variously used as dyeing mordant, catalysts, pigments, fertilizer, feeds, and disinfectants, and in tanning, soil