Tantalum
Halides

Tantalum halides span the oxidation states of +5, +4, and +3. Tantalum pentafluoride (TaF) is a white solid with a melting point of 97.0 °C. The anion is used for its separation from niobium. The chloride TaCl, which exists as a dimer, is the main reagent in synthesis of new Ta compounds. It hydrolyzes readily to an oxychloride. The lower halides TaX and TaX, feature Ta-Ta bonds.
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