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Hafnium is a chemical element with symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals.(Stored under water)
H 0749 (OTTO) Hafnium powder, -325 mesh, 99.6% Cas 7440-58-6 - used in alloys with iron, titanium, niobium, tantalum, and other metals.
Signal word Danger
Certificate Of Analysis
(For eg. B 1615-0108)
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7440-21-3
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