isopoly salt
Quick Summary
Isopoly salts are chemical compounds formed from isopoly acids, which are condensed weak acids. These acids are created when amphoteric metals, such as those in groups VB and VIB, form anions in specific oxidation states. These anions then polymerize, or condense, to form structures containing multiple molecules of the acid anhydride. If only one type of acid anhydride is present, the resulting acid is an isopoly acid, and its salts are isopoly salts.1
A simple example of this condensation is the formation of the dichromate ion (Cr₂O₇²⁻) from the chromate ion (CrO₄²⁻) in an acidic solution. Isopoly salts are generally less stable than heteropoly compounds, which are formed when different acid anhydrides condense together.1
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