Hafnium is a chemical element with the symbol Hf and atomic number 72.
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11 Facts About Hafnium
2.
Hafnium is named after, the Latin name for Copenhagen, where it was discovered.
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3.
Hafnium is a shiny, silvery, ductile metal that is corrosion-resistant and chemically similar to zirconium .
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4.
Hafnium reacts in air to form a protective film that inhibits further corrosion.
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5.
Hafnium tends to form inorganic compounds in the oxidation state of +4.
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6.
Hafnium was discovered by the two in 1923 in Copenhagen, Denmark, validating the original 1869 prediction of Mendeleev.
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7.
Hafnium is used in alloys with iron, titanium, niobium, tantalum, and other metals.
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8.
Hafnium is readily substituted into the zircon crystal lattice, and is therefore very resistant to hafnium mobility and contamination.
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9.
Hafnium is used as the electrode in plasma cutting because of its ability to shed electrons into air.
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10.
Hafnium metallocenes are part of a large collection of Group 4 transition metal metallocene catalysts that are used worldwide in the production of polyolefin resins like polyethylene and polypropylene.
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11.
Hafnium diselenide is studied in spintronics thanks to its charge density wave and superconductivity.
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