Element Manganese - Mn

Comprehensive data ~ above the chemical facet Manganese is detailed on this page; including scores of properties, facet names in plenty of languages, most recognized nuclides that Manganese. Usual chemical compounds are also provided for plenty of elements. In enhancement technical terms are attached to your definitions and also the menu has links come related short articles that are a great aid in one"s studies.

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Manganese Menu

Manganese web page OneOverview that ManganeseManganese"s name in various other LanguagesAtomic framework of ManganeseChemical properties of ManganesePhysical nature of ManganeseRegulatory / HealthWho/When/Where/HowManganese web page TwoNuclides / IsotopesPotential parent NuclidesManganese web page ThreeCommon chemical Compounds of Manganese

Overview the Manganese

Atomic Number: 25Group: 7Period: 4Series: shift Metals

Manganese"s surname in various other Languages

Latin: ManganumCzech: ManganCroatian: ManganFrench: ManganeseGerman: Mangan - rItalian: ManganeseNorwegian: ManganPortuguese: ManganêsRussian: МарганецSpanish: ManganesioSwedish: ManganAtomic structure of ManganeseAtomic Radius: 1.79ÅAtomic Volume: 1.39cm3/molCovalent Radius: 1.17ÅCross Section (Thermal neutron Capture) σa/barns: 13.3Crystal Structure: Cubic human body centered
Electron Configuration:1s2 2s2p6 3s2p6d5 4s2Electrons per energy Level: 2,8,13,2Shell Model
Ionic Radius:
0.46ÅFilling Orbital: 3d5Number of electrons (with no charge): 25Number of neutrons (most common/stable nuclide): 30Number that Protons: 25Oxidation States: 7,6,4,2,3Valence Electrons: 3d5 4s2Electron dot Model

Chemical nature of Manganese

Electrochemical Equivalent:
0.29282g/amp-hrElectron work Function: 4.1eVElectronegativity: 1.55 (Pauling); 1.6 (Allrod Rochow)Heat of Fusion: 12.05kJ/molIncompatibilities:OxidizersIonization PotentialFirst: 7.435Second: 15.64Third: 33.667Valence Electron Potential (-eV): 220

Physical nature of Manganese

Atomic mass Average: 54.93805Boiling Point: 2235K 1962°C 3564°FCoefficient of lineal thermal expansion/K-1: 22E-6ConductivityElectrical: 0.00695 106/cm ΩThermal: 0.0782 W/cmKDensity: 7.43g/cc
300KDescription:Silver-gray shift metal v a pinkish tinge.Elastic Modulus:Bulk: 120/GPaRigidity: 79.5/GPaYoungs: 191/GPaEnthalpy of Atomization: 280.3 kJ/mole
25°CEnthalpy that Fusion: 14.64 kJ/moleEnthalpy the Vaporization: 219.7 kJ/moleFlammablity Class: Metal: combustible SolidFreezing Point: see melting pointHardness ScaleBrinell: 196 MN m-2Mohs: 6Heat of Vaporization: 226kJ/molMelting Point: 1517K 1244°C 2271°FMolar Volume: 7.35 cm3/molePhysical State (at 20°C & 1atm): SolidSpecific Heat: 0.48J/gKVapor Pressure = 121Pa

Regulatory / Health

CAS Number7439-96-5RTECS: 009275000 (metal)OSHA allow Exposure border (PEL)Ceiling: 5 mg/m3OSHA PEL Vacated 1989TWA: 1 mg/m3Ceiling: 5 mg/m3STEL: 3 mg/m3NIOSH recommended Exposure limit (REL)TWA: 1 mg/m3STEL: 3 mg/m3IDLH: 500 mg/m3 Routes of Exposure: Inhalation; IngestionTarget Organs: respiratory tract system, central nervous system, blood, kidneysLevels In Humans:Note: this data represents naturally occuring level of facets in the common human, it DOES NOT stand for recommended everyday allowances.Blood/mg dm-3: 0.0016-0.075Bone/p.p.m: 0.2-100Liver/p.p.m: 3.6-9.6Muscle/p.p.m: 0.2-2.3Daily diet Intake: 0.4-10 mgTotal fixed In Avg. 70kg human: 12 mg

Who / wherein / when / How

Discoverer: Johann G. GahnDiscovery Location: Stockholm SwedenDiscovery Year: 1774Name Origin:Latin: mangnes (magnet); Ital. Manganese.Abundance of Manganese:Earth"s Crust/p.p.m.: 950Seawater/p.p.m.: Atlantic Suface: 0.0001Atlantic Deep: 0.000096Pacific Surface: 0.0001Pacific Deep: 0.00004Atmosphere/p.p.m.: N/ASun (Relative to H=1E12): 2.63Sources that Manganese:Most numerous ores room pyrolusite (MnO2), psilomelane <(BaH2O)2Mn5O10> and also rhodochrosite (MnCO3). Yearly world production is about 6,220,000 tons. Primary mining areas are southern Africa, Russia, Gabon, Australia, Brazil.Uses of Manganese:Used in steel, batteries, axles, rail switches, safes, plows and also ceramics.Additional Notes:

Manganese Menu

Manganese page OneOverview that ManganeseManganese"s surname in other LanguagesAtomic framework of ManganeseChemical nature of ManganesePhysical properties of ManganeseRegulatory / HealthWho/When/Where/HowManganese web page TwoNuclides / IsotopesPotential parental NuclidesManganese page ThreeCommon chemistry Compounds of Manganese


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