Tellurate

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The tellurate ion is TeO₄²⁻ or TeO₆⁶⁻.

Unlike sulfate, tellurate is a somewhat good oxidizer; it can be reduced to tellurite or tellurium.

Tellurate exists in two forms, metatellurate ion, TeO₄²⁻, and orthotellurate ion, TeO₆⁶⁻.

Compounds include metatellurates and orthotellurates. Metatellurates are analogous to sulfates, but they are rare. Orthotellurates are much more common and this forms most of the chemistry of tellurates.

In neutral conditions, pentahydrogen orthotellurate ion, H₅TeO₆⁻, is most common; in basic conditions, tetrahydrogen orthotellurate ion, H₄TeO₆²⁻, is found; in acid conditions, the orthotelluric acid, H₆TeO₆ is formed.

See category for a list.

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