Technical data for Titanium

Overview
NameTitanium
SymbolTi
Atomic Number22
Atomic Weight47.867
Density4.507 g/cm3
Melting Point1668 °C
Boiling Point3287 °C

Thermal properties
PhaseSolid
Melting Point1668 °C
Boiling Point3287 °C
Absolute Melting Point1941 K
Absolute Boiling Point3560 K
Heat of Fusion18.7 kJ/mol
Heat of Vaporization425 kJ/mol
Heat of CombustionN/A
Specific Heat520 J/(kg K)[note]
Thermal Conductivity22 W/(m K)
Thermal Expansion8.6×10-6 K-1

Bulk physical properties
Density4.507 g/cm3
Density (Liquid)4.11 g/cm3
Molar Volume0.000010621
Brinell Hardness716 MPa
Mohs Hardness6 MPa
Vickers Hardness970 MPa
Bulk Modulus110 GPa
Shear Modulus44 GPa
Young Modulus116 GPa
Poisson Ratio0.32
Refractive IndexN/A
Speed of Sound4140 m/s
Thermal Conductivity22 W/(m K)
Thermal Expansion8.6×10-6 K-1

Reactivity
Valence4
Electronegativity1.54
ElectronAffinity7.6 kJ/mol
Ionization Energies
658.8, 1309.8, 2652.5, 4174.6, 9581, 11533, 13590, 16440, 18530, 20833, 25575, 28125, 76015, 83280, 90880, 1.007×105, 1.091×105, 1.178×105, 1.299×105, 137530, 602930 kJ/mol

Health and Safety
Autoignition Point250 °C
FlashpointN/A

Classifications
Alternate NamesNone
Nams of AllotropesNone
Blockd
Group4
Period4
Electron Configuration[Ar]3d24s2
ColorSilver
Discovery
1791 in United Kingdom
Gas phaseN/A
CAS NumberCAS7440-32-6

Electrical properties
Electrical TypeConductor
Electrical Conductivity2.5×106 S/m
Resistivity4×10-7 m Ω
Superconducting Point0.4

Magnetic properties
Magnetic TypeParamagnetic
Curie PointN/A
Mass Magnetic Susceptibility4.01×10-8
Molar Magnetic Susceptibility1.919×10-9
Volume Magnetic Susceptibility0.0001807

Abundances
% in Universe0.0003%
% in Sun0.0004%
% in Meteorites0.054%
% in Earth's Crust0.66%
% in Oceans1×10-7%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius176 pm
Covalent Radius136 pm
Van der Waals RadiusN/A
Crystal StructureSimple Hexagonal
Lattice Angles
π/2, π/2, 2 π/3
Lattice Constants
295.08, 295.08, 468.55 pm
Space Group NameP63/mmc
Space Group Number194

Nuclear Properties
Half-LifeStable
LifetimeStable
Stable Isotopes
46Ti, 47Ti, 48Ti, 49Ti, 50Ti
Isotopic Abundances
46Ti8.25%
47Ti7.44%
48Ti73.72%
49Ti5.41%
50Ti5.18%

Notes on the properties of Titanium:
Specific Heat: Value given for solid phase.