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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 565085Generated: October 30, 2026

Phosphoric Acid → Phosphorus oxide (P4O10)

https://huagongshe.com/reaction/565085

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
ReactantPhosphateHCID 1061—
ReactantPhosphorusHCID 5462309—
ReactantSuperphosphatesHCID 24846366—
ProductPhosphorus oxide (P4O10)HCID 14812—

Reaction Steps

Concentrated superphosphate is manufactured by reacting thermal phosphoric acid with finely ground phosphate ore. The thermal phosphoric acid is made by burning elemental phosphorus to obtain P2O5 and combining P2O5 with water to make phosphoric acid. A porous monolithic mass is formed which is reduced to small sized particles for storage and completion of the chemical reactions. Electric furnace feedstock can be prepared by reducing the monolithic mass to a size suitable for smelting in electric furnaces. The P2O5 content of concentrated superphosphate fertilizer is in the range 48 to 50 percent.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06169222A
Source datasetuspto-grants-2001_01
ORD IDord-91e8276a4d4e417c85fc6a31ab006f8c
Source noteuspto-grants-2001_01