Technical data for Titanium

Overview Name Titanium Symbol Ti Atomic Number 22 Atomic Weight 47.867 Density 4.507 g/cm3 Melting Point 1668 °C Boiling Point 3287 °C Thermal properties Phase Solid Melting Point 1668 °C Boiling Point 3287 °C Absolute Melting Point 1941 K Absolute Boiling Point 3560 K Critical Pressure N/A Critical Temperature N/A Heat of Fusion 18.7 kJ/mol Heat of Vaporization 425 kJ/mol Specific Heat 520 J/(kg K)[note] Adiabatic Index N/A Neel Point N/A Thermal Conductivity 22 W/(m K) Thermal Expansion 8.6×10-6 K-1 Bulk physical properties Density 4.507 g/cm3 Density (Liquid) 4.11 g/cm3 Molar Volume 0.000010621 Brinell Hardness 715 MPa Mohs Hardness 6 Vickers Hardness 970 MPa Bulk Modulus 110 GPa Shear Modulus 44 GPa Young Modulus 116 GPa Poisson Ratio 0.32 Refractive Index N/A Speed of Sound 4140 m/s Thermal Conductivity 22 W/(m K) Thermal Expansion 8.6×10-6 K-1 Reactivity Valence 4 Electronegativity 1.54 ElectronAffinity 7.6 kJ/mol Ionization Energies 658.8, 1309.8, 2652.5, 4174.6, 9581, 11533, 13590, 16440, 18530, 20833, 25575, 28125, 76015, 83280, 90880, 100700, 109100, 117800, 129900, 137530, 602930 kJ/mol Health and Safety DOT Hazard Class 4.2 DOT Numbers 2546 RTECS Number N/A NFPA Label

Classifications Alternate Names None Names of Allotropes None Block d Group 4 Period 4 Series Transition Metal Electron Configuration [Ar]4s23d2 Color Silver Discovery 1791 in The United Kingdom Gas phase N/A CAS Number CAS7440-32-6 CID Number CID23963 RTECS Number N/A Electrical properties Electrical Type Conductor Electrical Conductivity 2.5×106 S/m Resistivity 4×10-7 m Ω Superconducting Point 0.4 Magnetic properties Magnetic Type Paramagnetic Curie Point N/A Mass Magnetic Susceptibility 4.01×10-8 m3/Kg Molar Magnetic Susceptibility 1.919×10-9 m3/mol Volume Magnetic Susceptibility 0.0001807 Abundances % in Universe 0.0003% % in Sun 0.0004% % in Meteorites 0.054% % in Earth's Crust 0.66% % in Oceans 1×10-7% % in Humans N/A Atomic dimensions and structure Atomic Radius 176 pm Covalent Radius 160 pm Van der Waals Radius N/A Crystal Structure Simple Hexagonal Lattice Angles π/2, π/2, 2 π/3 Lattice Constants 295.08, 295.08, 468.55 pm Space Group Name P63/mmc Space Group Number 194 Nuclear Properties Half-Life Stable Lifetime Stable Decay Mode N/A Quantum Numbers 3F2 Neutron Cross Section 6.1 Neutron Mass Absorption 0.0044 Known Isotopes 38Ti, 39Ti, 40Ti, 41Ti, 42Ti, 43Ti, 44Ti, 45Ti, 46Ti, 47Ti, 48Ti, 49Ti, 50Ti, 51Ti, 52Ti, 53Ti, 54Ti, 55Ti, 56Ti, 57Ti, 58Ti, 59Ti, 60Ti, 61Ti, 62Ti, 63Ti Stable Isotopes 46Ti, 47Ti, 48Ti, 49Ti, 50Ti Isotopic Abundances 46Ti 8.25% 47Ti 7.44% 48Ti 73.72% 49Ti 5.41% 50Ti 5.18%