Element Barium - Ba
Comprehensive data top top the chemical facet Barium is noted on this page; consisting of scores that properties, facet names in numerous languages, most recognized nuclides the Barium. Usual chemical compounds space also provided for countless elements. In addition technical state are attached to your definitions and the menu has links to related write-ups that space a great aid in one"s studies.
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Barium Menu
Barium web page OneOverview of BariumBarium"s surname in other LanguagesAtomic structure of BariumChemical nature of BariumPhysical nature of BariumRegulatory / HealthWho/When/Where/HowBarium page TwoNuclides / IsotopesPotential parental NuclidesBarium web page ThreeCommon chemistry Compounds the BariumOverview the Barium
Atomic Number: 56Group: 2Period: 6Series: Alkali planet MetalsBarium"s surname in various other Languages
Latin: BaryumCzech: BaryumCroatian: BarijFrench: BaryumGerman: Barium - sItalian: BarioNorwegian: BariumPortuguese: BárioRussian: БарийSpanish: BarioSwedish: BariumAtomic framework of BariumAtomic Radius: 2.78ÅAtomic Volume: 39.24cm3/molCovalent Radius: 1.98ÅCross Section (Thermal neutron Capture)σa/barns: 1.3Crystal Structure: Cubic human body centered
Chemical nature of Barium
Electrochemical Equivalent: 2.5621g/amp-hrElectron work-related Function: 2.7eVElectronegativity: 0.89 (Pauling); 0.97 (Allrod Rochow)Heat the Fusion: 7.75kJ/molIncompatibilities:Ionization PotentialFirst: 5.212Second: 10.004Valence Electron Potential (-eV): 21.3Physical nature of Barium
Atomic massive Average: 137.327Boiling Point: 2171K 1898°C 3448°FCoefficient of lineal heat expansion/K-1: 18.1E-6ConductivityElectrical: 0.03 106/cm ΩThermal: 0.184 W/cmKDensity: 3.59g/cc300KDescription:Soft heavy silver fancy metal.Elastic Modulus:Bulk: 9.6/GPaRigidity: 4.86/GPaYoungs: 12.8/GPaEnthalpy the Atomization: 175.7 kJ/mole
25°CEnthalpy that Fusion: 7.66 kJ/moleEnthalpy the Vaporization: 140 kJ/moleFlammablity Class:Freezing Point: see melt pointHardness ScaleMohs: 1.25Heat of Vaporization: 142kJ/molMelting Point: 1002K 729°C 1344°FMolar Volume: 38.21 cm3/molePhysical State (at 20°C & 1atm): SolidSpecific Heat: 0.204J/gKVapor Pressure = 98Pa
729°C
Regulatory / Health
CAS Number7440-39-3RTECS: CQ8370000NFPA 704Health: 2Fire: 2Reactivity:Special Hazard: OSHA permissible Exposure limit (PEL)No limits set by OSHAOSHA PEL Vacated 1989No limits set by OSHANIOSH recommended Exposure limit (REL)No limits set by NIOSH Levels In Humans:Note: this data represents normally occuring level of aspects in the usual human, the DOES NOT represent recommended daily allowances.Blood/mg dm-3: 0.068Bone/p.p.m: 3-70Liver/p.p.m: 0.04-1.2Muscle/p.p.m: 0.09Daily diet Intake: 0.6-1.7 mgTotal massive In Avg. 70kg human: 22 mgWho / wherein / when / How
Discoverer: sir Humphrey DavyDiscovery Location: London EnglandDiscovery Year: 1808Name Origin:Greek: barys (heavy or dense).Abundance that Barium:Earth"s Crust/p.p.m.: 500Seawater/p.p.m.: Atlantic Suface: 0.0047Atlantic Deep: 0.0093Pacific Surface: 0.0047Pacific Deep: 0.02Atmosphere/p.p.m.: N/ASun (Relative to H=1E12): 123Sources of Barium:Found in barytine (BaSO4) and witherite (BaCO3),never discovered in pure kind due to its reactivity. Total yearly world production estimated around 6,000,000 tons. Main mining locations are UK, Italy, Czech Republic, USA and Germany. Total world reserves approximated to be about 450,000,000 tons.Uses the Barium:Used in sparkplugs, vacuum tubes, fireworks, fluorescent lamps. Insoluble barium sulfate is supplied for human body imaging.Additional Notes:Must be stored under kerosene to stay pure. Soluble barium salt are very toxic.Barium Menu
Barium web page OneOverview the BariumBarium"s surname in other LanguagesAtomic structure of BariumChemical nature of BariumPhysical properties of BariumRegulatory / HealthWho/When/Where/HowBarium page TwoNuclides / IsotopesPotential parent NuclidesBarium page ThreeCommon chemical Compounds of BariumReferences
A perform of reference sources provided to translate into the data detailed on our periodic table of elements can be uncovered on the key periodic table page.
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