Phosphorus pentoxide (P₂O₅) is a white amorphous powder or crystalline solid, with strong water absorption and corrosiveness, and is a typical acidic oxide. It is stable at room temperature, sublimes when heated to 360℃, reacts violently with water to release a large amount of heat and form phosphoric acid, and has a strong dehydrating effect that can carbonize organic substances. The product has high purity, low impurity content and good stability, meeting the export industrial and reagent grade standards, and is suitable for various foreign trade compliance requirements.
Physical & Chemical Properties
Molecular FormulaP2O5
Density:2.4g/cm³g/cm³
Boiling Point:360℃
Solubility:
Highly soluble in water, reacts violently with water to form phosphoric acid; insoluble in acetone and ammonia, slightly soluble in ethanol.
Molecular Weight:141.9g/mol
Flash Point:
Melting Point:340℃
Uses
1. Chemical Industry: Used as a desiccant and dehydrating agent, and for the production of phosphoric acid, phosphates and organophosphorus compounds;
2. Pharmaceutical Industry: Used in dehydration reactions in drug synthesis and the preparation of pharmaceutical intermediates;
3. Metallurgical Industry: Used as a flux to improve metal smelting processes;
4. Others: Used as a food additive (within compliance scope), electronic material processing, laboratory reagents, etc.
Safety, Security & Risk
Chemical Hazards:
The aqueous solution is a strong acid. It reacts violently with alkalis and causes corrosion. It reacts sharply with perchloric acid. There is a risk of fire and explosion. It reacts sharply with water to form phosphoric acid. In the presence of water, it corrodes many metals.