Phosphorus pentoxide (P2O5)

Phosphorus pentoxide is a useful building block and reagent in the chemical industry:

Organic synthesis
Phosphorus pentoxide can be used as a reagent for condensations in organic synthesis and polymerization reactions. Typical uses include cyclisation / ring closures in such reactions as acetylation, alkylation, production of amines, acid amides, cyclic ketones, cyclic olefins or oxygen and sulphur heterocyclic compounds. These types of reaction are widely used in the preparation of organic intermediates in the pharmaceutical, Vi-Ta-Min, colors and dyes industries.

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Catalyst production
Phosphorus pentoxide can be used in the manufacture of special phosphoric acid supported catalysts.

Specialty inorganic phosphates
Phosphorus pentoxide can be used in the manufacture of specialty sodium and ammonium phosphates.

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Polyphosphoric acids
Various grades of superphosphoric and polyphosphoric acids can be manufactured by blending phosphorus pentoxide with phosphoric acid.

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Glass
Beside silicon dioxide and boron trioxide also phosphorus pentoxide is used for glass making.

Phosphate esters
Phosphorus pentoxide can be used vĩ đại produce phosphate esters with a mono/di ester nội dung. The acid is reacted directly with the appropriate alcohol or phenol vĩ đại produce the acidic phosphate ester.

Drying agent
Because of its strong hygroscopic properties phosphorus pentoxide can be used as a drying agent.