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Zirconium is a hard, lustrous, grayish-white metal. The mineral has been known since ancient times, but the existence of elemental zirconium was not known until the late 18th century. It is abundant in S-type stars and is a component of the sun and meteorites. It is very corrosion resistant and is utilized extensively by the chemical industry where corrosive agents are used. Zirconium is routinely found with some level of hafnium, since seperation of the elements is difficult.
|Property Name||Property Value||Property Name||Property Value|
|Atomic Code||(40Zr91.224)||Covalent Radius||1.45Angstroms|
|CAS #||7440-67-7||Vickers Hardness||110|
|Linear Coefficient of Expansion||5.7x10-6K-1|
|Melting Point||1855°C||Electrical Resistivity||41.4µΩ-cm|
|Boiling Point||3580°C||Crystal Structure||Hexagonal|
|Specific Heat @ 25°C||0.066cal/g°C||Thermionic Work Function||4.1eV|
|Heat of Fusion||3.74k-cal/g-atom||Modulus of Elasticity||11.2x106psi|
|Heat of Vaporization||120k-cal/g-atom||Poisson Ratio||0.34|
|Atomic Volume||14.1W/D||Magnetic Susceptibility||119x10-6emu/g-atom|
|First Ionization Energy||160K-cal/g-mole||Grueneisen Constant||128,900|