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Manganese

Manganese is a chemical element; it has the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. First isolated in the 1770s, manganese is a transition metal with many industrial alloy uses, particularly in stainless steels in which it improves strength, workability, and resistance to…

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52Mn
synth
53Mn
trace
54Mn
synth
55Mn
100%
Appearance
silvery metallic
at T (K)
1228

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Overview

Characteristics

Chemical compounds

History

Occurrence

Production

Applications

Biochemistry

Human health and nutrition

Regulation

Exposure

Health and safety

Sources

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Manganese

Nodes289
Edges288
Triples326
Avg. degree1.99
Density0.00692
Components1

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Manganese

Top relations

related to Regulation · 42
Manganese → Adequate Intakes, AI, AIs, As, At, Authority, Average Requirement, Collectively, Dietary Reference Intakes, Dietary Reference Values, DRIs, EAR, EARs, EFSA, Estimated Average Requirements, For, Germany, Health, Health Administration, In
related to Soils · 20
Manganese → At, Cr, Cr3, Cu2, II, III, In, IV, Microbial, Mn, Mn2, MnO2, MnOOH, Pb2, Soil, The, The Mn, These, VI, Zn2
related to Chemical compounds · 19
Manganese → Aside, Common, Compounds, Manganate, Mn, Mn2O7, MnO3Cl, MnO3F, MnO4, MnO42, MnO43, N3, O2, One, Oxyhalides, Potassium, Solutions, The, VII
related to Occurrence · 19
Manganese → About, Australia, Ba, Brazil, China, Earth's, Gabon, H2O, India, Land-based, Mn2, Mn3, MnCO3, MnO2, Other, Soil, South Africa, The, Ukraine
related to history · 17
Manganese → Gargas, German, Greece, In, Italian, Magnesia, Magnetes, Mangan, Michele Mercati, MnO2, Neither, Ns, Sipylum, The, They, This, Turkey
related to Organomanganese compounds · 16
Manganese → C5H5, CO, Consistent, Fe, II, III, In, Many, MMT, Mn, Mn-C, Mn2, Of, The, This, When
related to Oceanic environment · 13
Manganese → According, An, April, As, CIA's Project Azorian, Howard Hughes, Hughes Glomar Explorer, In, K-129, Soviet, The, These, This
related to Biochemistry · 12
Manganese → HIV, II, Manganese-containing, Many, Mn-containing, Mn-SOD, O2, OEC, Other, Some, The, The OEC
related to External links · 12
Manganese → All, EAF, Fact SheetInternational Manganese InstituteNIOSH, Manganese DendritesElectric Arc Furnace, Manganese Topic PageManganese, Mineral Commodity Summaries, National Pollutant Inventory, Nottingham, Slagusgs, The Periodic Table, University, Videos
related to In water · 12
Manganese → According, Americans, As, However, If, It, Mn, Physiological, Since, Specific, This, Waterborne

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Important terminology

used mn iron also dioxide metal compounds steel oxidation exposure production states ore carbon form water human element permanganate known

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Manganese52Mnsynth1.00infobox
Manganese53Mntrace1.00infobox
Manganese54Mnsynth1.00infobox
Manganese55Mn100%1.00infobox
ManganeseAppearancesilvery metallic1.00infobox
Manganeseat T (K)12281.00infobox
ManganeseAtomic number (Z)251.00infobox
ManganeseAtomic radiusempirical: 127 pm1.00infobox
ManganeseBlockd-block1.00infobox
ManganeseBoiling point2334 K ​(2061 °C, ​3742 °F)1.00infobox
ManganeseBrinell hardness196 MPa1.00infobox
ManganeseBulk modulus120 GPa1.00infobox
ManganeseCAS Number7439-96-51.00infobox
ManganeseCovalent radiusLow spin: 139±5 pm High spin: 161±8 pm1.00infobox
ManganeseCrystal structureα-Mn: ​body-centered cubic (bcc) (cI58)1.00infobox
ManganeseDensity (at 20° C)7.476 g/cm31.00infobox
ManganeseDiscoveryCarl Wilhelm Scheele (1774)1.00infobox
ManganeseElectrical resistivity1.44 µΩ⋅m (at 20 °C)1.00infobox
ManganeseElectron configuration[Ar] 3d5 4s21.00infobox
ManganeseElectronegativityPauling scale: 1.551.00infobox
ManganeseElectrons per shell2, 8, 13, 21.00infobox
ManganeseFirst isolationJohann Gottlieb Gahn (1774)1.00infobox
ManganeseGroupgroup 71.00infobox
ManganeseHeat of fusion12.91 kJ/mol1.00infobox
ManganeseHeat of vaporization221 kJ/mol1.00infobox
ManganeseIonization energies1st: 717.3 kJ/mol1.00infobox
ManganeseIonization energies2nd: 1509.0 kJ/mol1.00infobox
ManganeseIonization energies3rd: 3248 kJ/mol1.00infobox
ManganeseIonization energies(more)1.00infobox
ManganeseLattice constanta = 891.16 pm (at 20 °C)1.00infobox

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