A hexachloride is a compound or ion that contains six chlorine atoms or ions. It is the highest chloride that an element can form. Common hexachlorides include:

Molybdenum hexachloride, MoCl6 Tungsten hexachloride, WCl6 Rhenium hexachloride, ReCl6 Uranium hexachloride, UCl6

Some hexachloroanions are also known:

Hexachloroaluminate Hexachloroarsenate(V) Hexachlorocuprate(II) Hexachlorogermanate(IV) Hexachlorophosphate(V) Hexachloroplatinate(IV) Hexachlorothallate(III)

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