Zirconium

Properties

Atomic Number

40

Atomic Symbol

Zr

Atomic Mass

91.224

CAS No.

7440-67-7

Density

6.511 g/cm³

Series

transition metal

Melting Point

1,855°C

Boiling Point

4,409°C

Thermal Conductivity

0.23 W/cm °C

Heat of Fusion

21 kJ/mol

Heat of Vaporization

580 kJ/mol

Electronegativity

1.33 pauling

Crystal Structure

Hexagonal

Electrical Conductivity

2.4×10⁶ S/m