• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Phosphorus Pentoxide
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Phosphorus Pentoxide Diphosphorus pentoxide; P2O5 = 142.0 (1314-56-3)

Use a grade specially supplied for use in desiccators.

A white, amorphous, deliquescent powder hydrated by water with the evolution of heat.

Store in an airtight container.