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Sherrod McAllister 11/11/10 TECH 5 TH. element of vanadium Comprehensive data on the chemical element Vanadium is provided on this page; including scores.

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Presentation on theme: "Sherrod McAllister 11/11/10 TECH 5 TH. element of vanadium Comprehensive data on the chemical element Vanadium is provided on this page; including scores."— Presentation transcript:

1 Sherrod McAllister 11/11/10 TECH 5 TH

2 element of vanadium Comprehensive data on the chemical element Vanadium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Vanadium

3 overview of vanadium Atomic Number:23 Atomic Number Group: 5 Group Period: 4 Period Series: Transition MetalsTransition Metals

4 atomic structure of vanadium Atomic Radius: 1.92Å Atomic RadiusÅ Atomic Volume: 8.78cm 3 /mol Atomic Volumemol Covalent Radius: 1.22Å Covalent RadiusÅ Cross Section (Thermal Neutron Capture) σ a /barns: 5.08 Cross Sectionbarns Crystal Structure: Cubic body centered Crystal Structure

5 Chemical Properties of Vanadium Electrochemical Equivalent: g/amp-hr Electrochemical Equivalent Electron Work Function: 4.3eV Electron Work Function Electronegativity: 1.63 (Pauling); 1.85 (Allrod Rochow) Electronegativity Heat of Fusion: 20.9kJ/mol Heat of Fusion Incompatibilities: Strong oxidizers, ammonium nitrate

6 Physical Properties of Vanadium Atomic Mass Average: Atomic Mass Average Boiling Point: 3682K 3409°C 6168°F Boiling PointKCF Coefficient of lineal thermal expansion/K -1 : 8.3E -6 Coefficient of lineal thermal expansion Conductivity Electrical: /cm Ω Thermal: W/cmK Conductivity Density: 300K Density Description: Silvery-white metal. Elastic Modulus: Bulk: 158/GPa Rigidity: 46.7/GPa Youngs: 127.6/GPa Enthalpy of Atomization: °C Enthalpy of Fusion: kJ/mole Enthalpy of Vaporization: kJ/mole Flammablity Class: Non-combustible solid (except as dust) Freezing Point: see melting point Hardness Scale Brinell: 628 MN m -2 Mohs: 7 Vickers: 628 MN m -2 Heat of Vaporization: 0.452kJ/mol Heat of Vaporization Melting Point: 2175K 1902°C 3456°F Melting PointKCF Molar Volume: 8.55 cm 3 /mole Optical Reflectivity: 61% Physical State (at 20°C & 1atm): Solid Specific Heat: 0.49J/gK Specific Heat Vapor Pressure = Vapor PressureC

7 Regulatory / Health CAS Number OSHA Permissible Exposure Limit (PEL) OSHAPermissible Exposure Limit No limits set by OSHA OSHA PEL Vacated 1989 No limits set by OSHA NIOSH Recommended Exposure Limit (REL) NIOSHRecommended Exposure Limit No limits set by NIOSH Routes of Exposure: Inhalation; Ingestion; Skin and/or eye contact Target Organs: Skin, respiratory system Levels In Humans: Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances. Blood/mg dm -3 : < Bone/p.p.m: Liver/p.p.m: Muscle/p.p.m: 0.02 Daily Dietary Intake: 0.04 mg Total Mass In Avg. 70kg human: 0.11 mg Discovery Year: 1801 Name Origin: From Vanadis a Scandinavian goddess.

8 facts of vanadium pure vanadium is a greyish silvery metal, and is soft and ductile.

9 symbols of vanadium

10 isolation of vanadium Vanadium is available commercially and production of a sample in the laboratory is not normally required

11 number of vanadium 5

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