16 Facts About Iron

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

2. Iron provided by dietary supplements is often found as iro fumarate, although iro sulfate is cheaper and is absorbed equally well.

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

4. Iron is a byproduct of burning a mixture of aluminum powder and rust powder.

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

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

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

8. 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.

9. 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.

10. Iron forms compounds mainly in the +2 and +3 oxidation states.

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

12. Iron is a critical element in the metabolism of hundreds of proteins and enzymes involved in diverse body functions, such as oxygen transport, DNA synthesis, and cell growth.

13. 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.

14. Iron plays an important role in biology, forming complexes with molecular oxygen in hemoglobin and myoglobin; these two compounds are common oxygen transport proteins in vertebrates.

15. Iron forms binary compounds with the halogens and the chalcogens.

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