Metaphosphate

Metaphosphates are condensation products of ortho- phosphoric acid ( H3PO4) with the formula ( M'PO3 ) n ( M: monovalent cation ) Unlike polyphosphates to meta store together to ring molecules. As an example, the 6-membered ring of the Trimetaphosphats shown. Tetrametaphosphate form an analog 8- ring.

Trimetaphosphates were formerly used eg in detergents to soften water; Today, due to the fertilizing effect of the phosphates and the consequent eutrophication of water, which leads to excessive algae growth, zeolite ( framework silicates, such as zeolite A).

• Substance Group
• Phosphate