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Sulfur

Sulfur, also spelled as sulphur, is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with the chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature.

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32S
94.8%
33S
0.760%
34S
4.37%
35S
trace
36S
0.02%
Allotropes
see Allotropes of sulfur

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Overview

Characteristics

Compounds

History

Production

Applications

Biological role

Precautions

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Sulfur

Nodes538
Edges537
Triples350
Avg. degree2
Density0.003717
Components1

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Sulfur

Top relations

related to Fertilizer · 19
Sulfur → Amino, Atmospheric, Because, Biologically, CaSO4, Elemental, ES, Europe, However, It, Liebig's, Over, S-oxide, SO2, Some, Sulfates, The, This, Under
related to Production · 18
Sulfur → As, Booker, Due, Earth, Elemental, Eventually, Frasch, In, Indonesia, It, Mining, Once, Sicilian, Sicily, The, Then, Throughout, Washington
related to Spelling and etymology · 18
Sulfur → Anglo-French, Britain, By, Canada, Classical, English, Greek, Hellenized, Hellenized Latin, In, Latin, Middle English, Nonetheless, The, The Ancient Greek, This, United States, Webster's Dictionary
related to Modern times · 17
Sulfur → Britain, British, By, France, Frasch, French, In, King Ferdinand II, Leblanc, Louisiana, Marseille, Sicily, Sicily's, Sulfur Crisis, Texas, The, United States
related to External links · 16
Sulfur → Ages, Archived, Atomic Data, Chemistry, February, Introduction, ItalySulfur, NIST Physical Measurement LaboratorySulfur, Nottingham, Sulphur InstituteNutrient Stewardship, The Periodic Table, The Sulphur Institute, University, Videos, Vulcano Island, Wayback Machine
related to Further reading · 15
Sulfur → Astrid, Berlin/Boston, Eva, Freisinger, Gruyter, Guest Editors Martha, ISBN, Kroneck, Life, Peter, Roland, Sigel, Sosa Torres, Strong Relationship, Transition Metals
related to Antiquity · 14
Sulfur → According, AD, Anubis, Ebers Papyrus, Egypt, Egyptian, Egyptians, Elder, He, Pliny, Ptolemaic, Roman, Romans, There
related to Allotropes · 13
Sulfur → Amorphous, Besides S8, HPLC, Larger, Removing, S12, S18, S6, S7, S8, The, This, X-ray
related to Metalloproteins and inorganic cofactors · 12
Sulfur → Cu, Cu2, DNA, Examples, Fe, In, Metalloproteins, Mo, Most, Other, RNA, The
related to Transferring sulfur between inorganic and biomolecules · 12
Sulfur → Another, Beggiatoa, H2S, In, Primitive, Robert Ballard, Selman Waksman, Sergei Winogradsky, Some, Sulfur-based, They, Winogradsky

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Important terminology

used century sulfide compounds also elemental many form sulfate use acid bacteria found hydrogen organic common element chemical organosulfur natural

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Sulfur32S94.8%1.00infobox
Sulfur33S0.760%1.00infobox
Sulfur34S4.37%1.00infobox
Sulfur35Strace1.00infobox
Sulfur36S0.02%1.00infobox
SulfurAllotropessee Allotropes of sulfur1.00infobox
SulfurAlternative nameSulphur (pre-1992 British spelling)1.00infobox
SulfurAppearanceLemon yellow sintered microcrystals1.00infobox
Sulfurat T (K)3751.00infobox
SulfurAtomic number (Z)161.00infobox
SulfurBlockp-block1.00infobox
SulfurBoiling point717.8 K ​(444.6 °C, ​832.3 °F)1.00infobox
SulfurBulk modulus7.7 GPa1.00infobox
SulfurCAS Number7704-34-91.00infobox
SulfurCovalent radius105±3 pm1.00infobox
SulfurCritical point1314 K, 20.7 MPa1.00infobox
SulfurCrystal structurealpha (α-S8): ​orthorhombic (oF128)1.00infobox
SulfurCrystal structurebeta (β-S8): ​monoclinic (mP48)1.00infobox
SulfurDensity (near r.t.)alpha (α-S8): 2.07 g/cm3 beta (β-S8): 1.96 g/cm3 gamma (γ-S8): 1.92 g/cm31.00infobox
SulfurDiscoverybefore 2000 BCE1.00infobox
SulfurElectrical resistivity2×1015 Ω⋅m (at 20 °C) (amorphous)1.00infobox
SulfurElectron configuration[Ne] 3s2 3p41.00infobox
SulfurElectronegativityPauling scale: 2.581.00infobox
SulfurElectrons per shell2, 8, 61.00infobox
SulfurGroupgroup 16 (chalcogens)1.00infobox
SulfurHeat of fusionbeta (β-S8): 1.727 kJ/mol1.00infobox
SulfurHeat of vaporizationbeta (β-S8): 45 kJ/mol1.00infobox
SulfurIonization energies1st: 999.6 kJ/mol1.00infobox
SulfurIonization energies2nd: 2252 kJ/mol1.00infobox
SulfurIonization energies3rd: 3357 kJ/mol1.00infobox

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