Electrodialysis of Phosphates in Industrial-Grade Phosphoric Acid

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left" colspan="2">Initial concentration</td><td align="center" colspan="2">Final concentration</td></tr><tr class="thead"><td align="left">MgO</td><td align="center">H<sub>3</sub>PO<sub>4</sub></td><td align="center">MgO</td><td align="center">H<sub>3</sub>PO<sub>4</sub></td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">0. 0192 M</td><td align="center">0.707 M</td><td align="center">0.0072 M</td><td align="center">0.206 M</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Ion concentrations in the central compartment before and after demineralization for 450 min; the cell potential was approximately 7.4 V and the average electric current was was 0.15 A.

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Table 5

Table 5: Electrodialysis of Phosphates in Industrial-Grade Phosphoric Acid 