Element Strontium - Sr
Comprehensive data on the chemical element Strontium is detailed on this page; including scores of properties, facet names in plenty of languages, most recognized nuclides of Strontium. Typical chemical compounds are also provided for numerous elements. In enhancement technical terms are attached to their definitions and also the menu has links come related posts that room a an excellent aid in one"s studies.
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Strontium MenuStrontium web page OneOverview the StrontiumStrontium"s name in various other LanguagesAtomic framework of StrontiumChemical nature of StrontiumPhysical properties of StrontiumRegulatory / HealthWho/When/Where/HowStrontium web page TwoNuclides / IsotopesPotential parent NuclidesStrontium web page ThreeCommon chemistry Compounds of Strontium
Overview that StrontiumAtomic Number: 38Group: 2Period: 5Series: Alkali earth Metals
Strontium"s name in various other LanguagesLatin: StrontiumCzech: StronciumCroatian: StroncijFrench: StrontiumGerman: Strontium - sItalian: StronzioNorwegian: StrontiumPortuguese: EstrôncioRussian: СтронцийSpanish: EstroncioSwedish: StrontiumAtomic framework of StrontiumAtomic Radius: 2.45ÅAtomic Volume: 33.7cm3/molCovalent Radius: 1.91ÅCross Section (Thermal neutron Capture) σa/barns: 1.28Crystal Structure: Cubic challenge centered
Chemical properties of StrontiumElectrochemical Equivalent: 1.635g/amp-hrElectron job-related Function: 2.59eVElectronegativity: 0.95 (Pauling); 0.99 (Allrod Rochow)Heat that Fusion: 8.3kJ/molIncompatibilities:Ionization PotentialFirst: 5.695Second: 11.03Third: 43.6Valence Electron Potential (-eV): 25.7
Physical nature of StrontiumAtomic massive Average: 87.62Boiling Point: 1657K 1384°C 2523°FCoefficient of lineal heat expansion/K-1: 23E-6ConductivityElectrical: 0.0762 106/cm ΩThermal: 0.353 W/cmKDensity: 2.54g/cc
300KDescription:Soft silvery yellow metal that will certainly burn if ignited in air.Elastic Modulus:Bulk: 12/GPaRigidity: 6.03/GPaYoungs: 15.7/GPaEnthalpy that Atomization: 163.2 kJ/mole
25°CEnthalpy that Fusion: 9.16 kJ/moleEnthalpy that Vaporization: 150 kJ/moleFlammablity Class:Freezing Point: see melt pointHardness ScaleMohs: 1.5Heat that Vaporization: 144kJ/molMelting Point: 1042K 769°C 1416°FMolar Volume: 33.7 cm3/molePhysical State (at 20°C & 1atm): SolidSpecific Heat: 0.3J/gKVapor Pressure = 246Pa
Regulatory / HealthCAS Number7440-24-6OSHA permit Exposure limit (PEL)No limits set by OSHAOSHA PEL Vacated 1989No limits set by OSHANIOSH recommended Exposure border (REL)No limits collection by NIOSH Levels In Humans:Note: this data represents naturally occuring level of elements in the usual human, the DOES NOT represent recommended daily allowances.Blood/mg dm-3: 0.031Bone/p.p.m: 36-140Liver/p.p.m: 0.05-0.36Muscle/p.p.m: 0.12-0.35Daily dietary Intake: 0.8-5 mgTotal massive In Avg. 70kg human: 320 mgDiscovery Year: 1790Name Origin:From Strontian a small Scottish town.Abundance the Strontium:Earth"s Crust/p.p.m.: 370Seawater/p.p.m.: Atlantic Suface: 7.6Atlantic Deep: 7.7Pacific Surface: 7.6Pacific Deep: 7.7Atmosphere/p.p.m.: N/ASun (Relative to H=1E12): 790Sources the Strontium:Found in minerals celestite and also strontianite. Annual world broad production is approximately 137,000 tons. Major mining areas are UK, Tunisia, Russia, Germany, Mexico and USA.Uses the Strontium:Used in flares and fireworks for crimson color. Likewise used in atom batteries in buoys and phosphorescent paint.Additional Notes:A. Crawford first recognized strontium together an facet in 1790, but it wasn"t isolated until 1808 by teacher Humphry Davy in London England.
Strontium MenuStrontium page OneOverview that StrontiumStrontium"s surname in various other LanguagesAtomic framework of StrontiumChemical properties of StrontiumPhysical properties of StrontiumRegulatory / HealthWho/When/Where/HowStrontium page TwoNuclides / IsotopesPotential parent NuclidesStrontium web page ThreeCommon chemistry Compounds of Strontium
A list of reference sources offered to compile the data listed on our periodic table of elements can be uncovered on the main periodic table page.
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