Proprietăți

CAS Number7439-89-6
PubChem CID23925
Rază atomică126
Volum molar7,1
Masă atomică55,845
Blocd
Punct de fierbere2.861
Bulk Modulus
CategorieMetale de tranziție
Structură cristalinăCorp Centrat Cubic
CuloareGri
Rază de covalență132
Densitate7,874
Electrical Resistivity
Configurație electronică[Ar] 3d6 4s2
Electroni pe nivelul de energie2, 8, 14, 2
Electronegativitate1,83
Electrons26
Grupă8
Energie de fuziune13,8
Energie de evaporare347
Potențial de ionizare7,902
Magnetic Ordering
Magnetic Susceptibility
Masa55,845
Mass Number26
Punct de topire1.538
NumeFier
Neutroni30
Număr atomic56
Număr de oxidare-2, -1, 1, 2, 3, 4, 5, 6, 7, 8
Perioadă4
FazăSolid
Poisson Ratio
Protoni26
Shear Modulus
Căldură specifică0,449
SimbolFe
Conductivitate termică0,802
Van der Waals radius
Young's Modulus
Abundență naturală
Abundența în scoarța Pământului6.3%
Abundența în Univers0.11%
Fe Fier 26 55.845 8 4 d 26 1535.0 2750.0 [Ar] 4s2 3d6 2 8 14 2 7.86 6.3% Gray Cubic: Body centered 1.8 1.80 {"1":"762.5","2":"1561.9","3":"2957","4":"5290","5":"7240","6":"9560","7":"12060","8":"14580","9":"22540","10":"25290","11":"28000","12":"31920","13":"34830","14":"37840","15":"44100","16":"47206","17":"122200","18":"131000","19":"140500","20":"152600","21":"163000","22":"173600","23":"188100","24":"195200","25":"851800","26":"895161"} 763 15.7 125 +3,2 1.26 7.1 13.8 349.5 0.449 80.2 0 Solid, Ferromagnetic, Conductor, TransitionMetal, Metal, Stable, Natural EYE-ern Malleable, ductile, silvery-white metal. Fourth most abundant element in the earth's crust (56,300 ppm). Ninth most abundant element in the universe. Used in steel and other alloys. Essential for humans. It is the chief constituent of hemoglobin which carries oxygen in blood vessels. Its oxides are used in magnetic tapes and disks. Obtained from iron ores. Pure metal produced in blast furnaces by layering limestone, coke and iron ore and forcing hot gasses into the bottom. This heats the coke red hot and the iron is reduced from its oxides and liquified where it flows to the bottom 01z4tnBbsL0 Iron
By the 3rd century, the Chinese discovered that sulfur could be extracted from pyrite.

Indian alchemists wrote extensively about the use of sulfur in alchemical operations with mercury, from the eighth century AD onwards.

In 1777, Antoine Lavoisier helped convince the scientific community that sulfur was an element, not a compound. Cunoscut din antichitate; face referire în geneză fiind pucioasă 26 From the Anglo-Saxon word "iron" or "iren" (the origin of the symbol Fe comes from the Latin word "ferrum" meaning "iron").

Isotopes of Sulfur

Standard Atomic Weight

55.845(2)

Izotopi stabili

54Fe 56Fe 57Fe 58Fe

Izotopi instabili

45Fe 46Fe 47Fe 48Fe 49Fe 50Fe 51Fe 52Fe 53Fe 55Fe 59Fe 60Fe 61Fe 62Fe 63Fe 64Fe 65Fe 66Fe 67Fe 68Fe 69Fe 70Fe 71Fe 72Fe

Elemental sulfur is considered to be of low toxicity
Penicillin is a natural, sulfur-based antibiotic
Sulfur's main commercial use is as a reactant in the production of sulfuric acid.

Sulfur is a component of black gunpowder, and is used in the vulcanization of natural rubber and a fungicide.

It is used to make sulfite paper and other papers, to fumigate fumigant, and to bleach dried fruits.

It is also used extensively in making phosphatic fertilizers.