Phosphorus pentoxide

CAS Registry Number®

1314-56-3
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CAS Name

Phosphorus pentoxide

Molecular Formula

O5P2

Cite this Page

Phosphorus pentoxide.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=1314-56-3 (retrieved 2025-03-28) (CAS RN: 1314-56-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    514 °C @ Press: 760 Torr

  • Melting Point (2)

    360 °C (sublm)

  • Density (3)

    2.30 g/cm³

Source(s)

  • (1) Wan, Hezhi; CN1887697, A, 2007, CAplus
  • (2) International Chemical Safety Cards data were obtained from the National Institute for Occupational Safety and Health (US)
  • (3) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

Other Names for this Substance

  • Phosphorus oxide (P2O5)
  • Diphosphorus pentoxide
  • Phosphoric anhydride
  • Phosphorus pentaoxide
  • Phosphorus pentoxide

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Deleted or Replaced CAS Registry Numbers

24377-84-2, 50811-86-4, 59778-57-3, 72906-42-4, 2566863-42-9

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