Make a chain of controls: KClO3-O2-P2O5-HPO4-H3PO4-Ca (PO4) 2
| December 21, 2020 | education
1) 2KClO3 -> 2KCl + 3O2 (in the presence of a catalyst) 2) 5O2 + 4P -> 2P2O5 (in an excess of oxygen, red phosphorus burns to P2O5) 3) P2O5 + H2O -> 2HPO3 4) HPO3 + H2O -> H3PO4 (when boiling) 5) 2H3PO4 + 3CaO -> Ca3 (PO4) 2 + 3H2O
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