Potassium Phosphate

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Potassium phosphate is a generic term for the salts of potassium and phosphate ions, including monopotassium phosphate, Dipotassium phosphate, and tripotassium phosphate. It is a highly water-soluble salt which is often used as a fertilizer, food additive and buffering agent and is therefore completely safe to use in spirulina cultivation.

Dipotassium phosphate (K₂HPO₄) is a highly water-soluble salt which is often used as a fertilizer, food additive and buffering agent. It is a common source of phosphorus and potassium.

A dipotassium phosphate solution is formed by the stoichiometric reaction of phosphoric acid with two equivalents of potassium hydroxide:

H₃PO₄ + 2 KOH → K₂HPO₄ + 2 H₂O

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