Iron is formed via fusion in stars that have sufficient mass.Iron primarily forms compounds with +2 and +3 oxidation states.Twenty milligrams of iron per kilogram of body weight is toxic, while 60 milligrams per kilogram is lethal.
Iron element free#
Free iron in the blood reacts with peroxides to form free radicals that damage DNA, protein, lipids and other cellular components, leading to illness and sometimes death. Although iron is an essential mineral, much of it is extremely toxic.Humans use iron in hemoglobin molecules in blood to allow for the transport of oxygen to tissues throughout the body. 3.) Iron almost always has to be removed from other elements. 2.) Iron is one of the 4 magnetic substances. Plants use iron in chlorophyll, the pigment used in photosynthesis. 1.) The annual world production of iron is around 716, 000,000 tons. The a allotrope (or form) of iron is ferromagnetic, yet if it is transformed to the b allotrope, the magnetism disappears even though the crystal lattice is unchanged.
According to archaeological records from Anatolia-also called Asia Minor, a peninsula that today makes up the Asian part of Turkey-man has been producing steel for at least 4,000 years.