What needs to be done to get H3PO3?

Phosphoric acid can be obtained in several ways. Let’s take a look at the three most popular ways to get it:

The interaction of phosphorus oxide and water, as a result of the reaction, we obtain phosphoric acid.

P2O3 + 3 H2O = 2 H3PO3,
Phosphorus chloride reacts with water, resulting in the formation of phosphoric acid and hydrochloric acid.

PCl3 + 3 H2O = H3PO3 + 3 HCl,
The reaction of phosphoric acid and water, as a result of the reaction, phosphoric and orthophosphoric acids are formed.

H4P2O6 + H2O = H3PO3 + H3PO4.

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