Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 971590Generated: October 26, 2026

Calcium hydrogen phosphate → Phosphoric Acid

https://huagongshe.com/reaction/971590

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCalcium hydrogen phosphateHCID 24441—
ReactantPotassium SulfateHCID 24507—
ProductPhosphoric AcidHCID 1004—
ProductMonobasic potassium phosphateHCID 516951—

Reaction Steps

In an alternative reaction, the solid monocalcium phosphate is reacted with potassium sulfate to yield primarily KH2PO4 with little or no H3PO4 coproduct. Conversely, if a portion of the (uncrystallized) MCP/H3PO4 liquor is reacted with potassium sulfate the resulting KH2PO4 /H3PO4 solution will have a plant food value of 0-24-6. A portion of any of the K2O products may be recycled back to the acidulation vessel to provide makeup for the K2O lost in the hydrolysis sector.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04160657
Source datasetuspto-grants-1979_07
ORD IDord-acfaae36f9f6446483e0fe04cae3fdb4
Source noteuspto-grants-1979_07