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Precipitation of Monocalcium Phosphate
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malusdb:
Hello guys, i have an aqueous solution with Phosphate ions dissolved in it. If I add some Calcium salt, is there any way to precipitate Monocalcium Phosphate Ca(H2PO4)2 (to use as a fertilizer) rather than dicalcium phosphate or tricalcium phosphate ?
Thank you for the answers
chenbeier:
You need phosphoric acid. Only from phosphate no way, the pH is neutral to alkaline. You need at least pH 2.
AWK:
--- Quote from: chenbeier on June 15, 2020, 01:50:17 PM --- You need at least pH 2.
--- End quote ---
Rather a pH about 4.6.
What phosphate?
What is its concentration?
Compare the solubilities of your phosphate and Ca(H2PO4)2
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