The predicted binding site also fully encompasses two out of three of the sulfate ions and borders the third.

For the sulfate ion, the triply-degenerate modes can show splitting into two or three components.

This is because a sulfate ion has a charge of -2, so each iron atom takes a charge of +3.

In the sulfate ion, it is deprotonated twice.

These ions in turn are hydrogen bonded to sulfate ions.

It has iron in its +3 oxidation state and sulfate ions.

The total scale was defined using a medium containing sulfate ions.

In such a cell, the sulfate ions play an important role.

Recharge would have sulfate ions crossing with copper ions in the other direction.

It is commonly used as a test for sulfate ion (see chemical properties above).