Hafnium Reduction

Chemical Formula: Hf
Present as: anion

Hafnium is a chemical element with symbol Hf and atomic number 72. A lustrous, silvery gray metal, hafnium has a high neutron capture cross section making it useful in certain nuclear applications. Hafnium is the sister metal of zirconium and has similar properties.
Hafnium is used in filaments and electrodes. Some semiconductor fabrication processes use its oxide for integrated circuits at 45 nm and smaller feature lengths. Some superalloys used for special applications contain hafnium in combination with niobium, titanium, or tungsten.Hafnium’s large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors.
If ionized in water, Hafnium forms a tetravalent cation.

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