Her er den afbalancerede kemiske ligning:
2 Fe(s) + 2 H₃PO₄(aq) → 2 FePO₄(s) + 3 H₂(g)
Forklaring:
* jern (Fe) is a metal that readily reacts with acids.
* Phosphoric acid (H₃PO₄) er en svag syre.
* The reaction produces iron(III) phosphate (FePO₄) , an insoluble solid that precipitates out of the solution.
* Hydrogen gas (H₂) is also produced as a byproduct.
This reaction is often used in the production of iron phosphate, which has various applications, including:
* Pigment production: Iron phosphate is used as a pigment in paints and coatings.
* Corrosion inhibitor: It can help prevent the rusting of iron and steel.
* Feed additive: It is used as a phosphorus supplement in animal feed.
* Ceramic glaze: Iron phosphate is used in ceramic glazes to create unique colors.
Bemærk: This reaction requires heating to proceed at a reasonable rate.
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