Tripotassium Phosphate

Tripotassium phosphate is the tribasic potassium salt of phosphoric acid (CAS 7778-53-2; K3PO4, MW 212.27), carrying three potassium ions per phosphate. It supplies both potassium, about 55%, and phosphorus, and is the most potassium-dense of the three potassium phosphate grades, above the dibasic dipotassium phosphate and the monobasic monopotassium phosphate already in the range. Being fully neutralised it is strongly alkaline in solution and highly water-soluble. We supply it as a white hygroscopic powder for powders, capsules and liquid formats.

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