29 Facts About Iron


Iron is a chemical element with symbol Fe and atomic number 26.

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Iron is the metal at the active site of many important redox enzymes dealing with cellular respiration and oxidation and reduction in plants and animals.

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Iron is the sixth most abundant element in the universe, and the most common refractory element.

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Iron is sometimes considered as a prototype for the entire block of transition metals, due to its abundance and the immense role it has played in the technological progress of humanity.

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Iron is a common intermediate in many biochemical oxidation reactions.

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Iron is the first of the transition metals that cannot reach its group oxidation state of +8, although its heavier congeners ruthenium and osmium can, with ruthenium having more difficulty than osmium.

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Iron is by far the most reactive element in its group; it is pyrophoric when finely divided and dissolves easily in dilute acids, giving Fe.

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Iron oxide exists, though it is unstable at room temperature.

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Iron reacts with fluorine, chlorine, and bromine to give the corresponding ferric halides, ferric chloride being the most common.

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Iron complexes are quite similar to those of chromium with the exception of iron's preference for O-donor instead of N-donor ligands.

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Iron compounds tend to be oxidized to iron compounds in the air.

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Iron is one of the elements undoubtedly known to the ancient world.

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Iron plays a certain role in mythology and has found various usage as a metaphor and in folklore.

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The Iron Age was closely related with Rome, and in Ovid's Metamorphoses.

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Iron ore is then treated with these gases in a furnace, producing solid sponge iron:.

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Iron catalysts are traditionally used in the Haber–Bosch process for the production of ammonia and the Fischer–Tropsch process for conversion of carbon monoxide to hydrocarbons for fuels and lubricants.

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Iron based catalysts play a crucial role in converting biobased raw materials into valuable bulk- and fine chemicals, in fuel cells as well as in removal of hazardous chemicals.

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Iron chloride finds use in water purification and sewage treatment, in the dyeing of cloth, as a coloring agent in paints, as an additive in animal feed, and as an etchant for copper in the manufacture of printed circuit boards.

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Iron sulfate is used as a precursor to other iron compounds.

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Iron sulfate is used in settling minute sewage particles in tank water.

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Iron-containing proteins participate in transport, storage and used of oxygen.

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Iron acquisition poses a problem for aerobic organisms because ferric iron is poorly soluble near neutral pH.

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Iron is pervasive, but particularly rich sources of dietary iron include red meat, oysters, lentils, beans, poultry, fish, leaf vegetables, watercress, tofu, chickpeas, black-eyed peas, and blackstrap molasses.

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Iron is most available to the body when chelated to amino acids and is available for use as a common iron supplement.

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Iron deficiency is the most common nutritional deficiency in the world.

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Iron uptake is tightly regulated by the human body, which has no regulated physiological means of excreting iron.

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Iron plays an essential role in marine systems and can act as a limiting nutrient for planktonic activity.

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Iron can be oxidized by marine microbes under conditions that are high in iron and low in oxygen.

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Iron can enter marine systems through adjoining rivers and directly from the atmosphere.

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