Molecular Weight 63.55 Appearance Reddish Metal Melting Point 1085 C Boiling Point 2562 C Density 8.96 g/cm3 Solubility in H2O N/A Electrical Resistivity 1.673 cm @ 20C Electronegativity 1.90 Paulings Heat of Fusion 13.26 kJ mol-1 Heat of Vaporization 300.4 kJ ·mol-1 Poisson's Ratio 0.34 Specific Heat 0.39 kJ/kg K Thermal Conductivity 401 W m-1 K-1 Thermal Expansion (25 C) 16.5 m·m-1·K-1 Vickers Hardness 369 MPa Young's Modulus 110 - 128 GPa
