Element Cobalt - Co
Comprehensive data top top the chemical aspect Cobalt is detailed on this page; consisting of scores that properties, facet names in many languages, most well-known nuclides that Cobalt. Common chemical compounds space also detailed for many elements. In enhancement technical state are connected to their definitions and also the menu has links to related articles that space a great aid in one"s studies.
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Cobalt MenuCobalt page OneOverview of CobaltCobalt"s surname in other LanguagesAtomic structure of CobaltChemical nature of CobaltPhysical nature of CobaltRegulatory / HealthWho/When/Where/HowCobalt web page TwoNuclides / IsotopesPotential parent NuclidesCobalt web page ThreeCommon chemical Compounds that Cobalt
Overview of CobaltAtomic Number: 27Group: 9Period: 4Series: transition Metals
Cobalt"s name in other LanguagesLatin: CobaltumCzech: KobaltCroatian: KobaltFrench: CobaltGerman: Kobalt - rItalian: CobaltoNorwegian: KoboltPortuguese: CobaltoRussian: КобальтSpanish: CobaltoSwedish: KoboltAtomic framework of CobaltAtomic Radius: 1.67ÅAtomic Volume: 6.7cm3/molCovalent Radius: 1.16ÅCross Section (Thermal spirit Capture)σa/barns: 37.2Crystal Structure: Hexagonal
Chemical properties of CobaltElectrochemical Equivalent: 1.0994g/amp-hrElectron work-related Function: 5eVElectronegativity: 1.88 (Pauling); 1.7 (Allrod Rochow)Heat that Fusion: 16.19kJ/molIncompatibilities:Strong oxidizers, ammonium nitrateIonization PotentialFirst: 7.86Second: 17.06Third: 33.5Valence Electron Potential (-eV): 38.7
Physical nature of CobaltAtomic fixed Average: 58.9332Boiling Point: 3143K 2870°C 5198°FCoefficient of lineal thermal expansion/K-1: 13.36E-6ConductivityElectrical: 0.172 106/cm ΩThermal: 1 W/cmKDensity: 8.9g/cc
300KDescription:Tough silver-white shift metal.Elastic Modulus:Bulk: 181.5/GPaRigidity: 82/GPaYoungs: 211/GPaEnthalpy the Atomization: 26.8 kJ/mole
25°CEnthalpy the Fusion: 15.23 kJ/moleEnthalpy of Vaporization: 382.4 kJ/moleFlammablity Class: Non-combustible heavy (except as dust)Freezing Point: see melt pointHardness ScaleBrinell: 700 MN m-2Mohs: 5Vickers: 1043 MN m-2Heat that Vaporization: 376.5kJ/molMelting Point: 1768K 1495°C 2723°FMolar Volume: 6.61 cm3/moleOptical Reflectivity: 67%Physical State (at 20°C & 1atm): SolidSpecific Heat: 0.42J/gKVapor Pressure = 175Pa
Regulatory / HealthCAS Number7440-48-4RTECS: GF8750000OSHA allow Exposure limit (PEL)TWA: 0.1 mg/m3OSHA PEL Vacated 1989TWA: 0.05 mg/m3NIOSH recommended Exposure limit (REL)TWA: 0.05 mg/m3IDLH: 20 mg/m3 Routes that Exposure: Inhalation; Ingestion; Skin and/or eye contactTarget Organs: Skin, respiratory tract systemLevels In Humans:Note: this data represents naturally occuring level of aspects in the usual human, the DOES NOT represent recommended day-to-day allowances.Blood/mg dm-3: 0.0002-0.04Bone/p.p.m: 0.01-0.04Liver/p.p.m: 0.06-1.1Muscle/p.p.m: 0.028-0.65Daily dietary Intake: 0.005-1.8 mgTotal mass In Avg. 70kg human: 3 mg
Who / wherein / once / HowDiscoverer: George BrandtDiscovery Location: Stockholm SwedenDiscovery Year: 1735Name Origin: German: kobalt or kobold (evil spirit); Greek: cobalos (mines).Abundance of Cobalt:Earth"s Crust/p.p.m.: 20Seawater/p.p.m.: Atlantic Suface: N/AAtlantic Deep: N/APacific Surface: 0.0000069Pacific Deep: 0.0000011Atmosphere/p.p.m.: N/ASun (Relative come H=1E12): 79400Sources the Cobalt:Occurs in compounds through arsenic, oxygen and sulfur together in cobaltine (CoAsS) and linneite (Co3S4). Annual world production is approximately 17,000 tons. Major mining locations are in Zaire, Morocco, Sweden and Canada.Uses the Cobalt:Used in numerous hard alloys; for magnets, ceramics and special glasses. Likewise used in irreversible magnets, razor blades and also catalitic converters. Cobalt-60 is offered in cancer therapy.Additional Notes:
Cobalt MenuCobalt page OneOverview that CobaltCobalt"s surname in other LanguagesAtomic structure of CobaltChemical nature of CobaltPhysical nature of CobaltRegulatory / HealthWho/When/Where/HowCobalt web page TwoNuclides / IsotopesPotential parent NuclidesCobalt page ThreeCommon chemical Compounds that Cobalt
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