Phosphorus Pentoxide

Chemical Synthesis: Used as a catalyst and dehydrating agent in the production of pharmaceuticals and dyes.
Fertilizer Production: Intermediary in the creation of concentrated phosphate fertilizers and animal feed supplements.
Asphalt Modification: Used to improve the high-temperature performance and aging resistance of industrial bitumen.

Phosphoric anhydride, Phosphorus(V) oxide, P2O5.

CAS: 1314-56-3
EC: 215-236-1
Sectors: Pharma & Healthcare, Agriculture

Phosphorus Pentoxide (CAS 1314-56-3) is an inorganic acid anhydride, also called phosphoric anhydride, that appears as a white crystalline, very deliquescent powder and reacts with water to form phosphoric acid; it is used as a Technical Grade dehydrating agent and reagent in pharmaceutical synthesis, phosphate ester and fertilizer production. The material is indispensable in the production of High-Purity Phosphoric Acid and various phosphate esters. It is a critical dehydrating agent in organic synthesis for the preparation of nitriles and acid anhydrides. Due to its high reactivity , it is used as a potent desiccant for gases and liquids in industrial laboratories. It is a primary raw material for the manufacturing of specialty glass and agricultural fertilizers.

Typical Properties

Molecular formula	O₅P₂
Molecular weight	141.94 g/mol
Appearance	Phosphorus pentoxide is a white crystalline solid.
Form	Very Deliquescing Powder
Color	White
Odor	Pungent odour
Melting point	360 °C (sublm)
Boiling point	514 °C @ Press: 760 Torr
Density	2.30 g/cm³
Water solubility	Soluble in sulfuric acid. Insoluble in acetone and ammonia. Decomposes in water.
Flash point	340-360°C
pH	1 (5g/l, H2O, 20°C)
HS code	28091000
Grades available	Technical Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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