Iron, (Latin ferrum,"iron") symbol Fe, magnetic, malleable, silvery white metallic element. The atomic number of iron is 26; iron is one of the transition elements of the periodic table.
             Iron is probably the most precious of all metals, since man would certainly miss this element more than any other, even the so-called precious ones. In the beginning of the 14th century, when iron was rare, some iron kitchen utensils of Edward III where classified as jewelry, and iron accessories were preferentially seek by robbers.
             The name "iron" comes from the Scandinavian "iarn". Many fantastic stories have been told about the origin of iron. Some of them say that was iron a gift of the Gods while others try to describe it as coming from meteoric sources. As we all know iron can be reduced from several ores present in Nature. It is told that iron was produced for the first time when some pieces of ore, used in cook fires, reduced, when fires were kept long enough. After this, it was observed that higher temperatures (and wind) lead a better iron. This method was improved by several tricks until the creation of the furnace.
             Iron has been known and used since prehistoric times. The writings of the most early civilizations refer to it, and there is evidence that it was known more than 7000 years ago; in China the usage of steel goes back to 2550 a.C.. Some Vedic poets wrote that their prehistoric ancestors already knew iron and were able to transform it into utensils through a considerable range of technics.
             Pure iron, prepared by the electrolysis of ferrous sulfate solution, has limited use. Commercial iron invariably contains small amounts of carbon and other impurities that alter its physical properties, which are considerably improved by the further addition of carbon and other alloying elements.
             The greatest amount of iron is used in processed forms, such as wrought iron, cast iron, and steel. Commercially pure iron is use...