Pyrophosphoric acid

CAS Registry Number®

2466-09-3
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CAS Name

Pyrophosphoric acid

Molecular Formula

H4O7P2

Molecular Mass

177.98

Cite this Page

Pyrophosphoric acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2466-09-3 (retrieved 2024-05-30) (CAS RN: 2466-09-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    61 °C

Source(s)

  • (1) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

Other Names and Identifiers

InChI

InChI=1S/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6)

InChIKey

InChIKey=XPPKVPWEQAFLFU-UHFFFAOYSA-N

SMILES

O(P(=O)(O)O)P(=O)(O)O

Canonical SMILES

O=P(O)(O)OP(=O)(O)O

Other Names for this Substance

  • Diphosphoric acid
  • Pyrophosphoric acid
  • Diphosphoric acid (H4P2O7)

Deleted or Replaced CAS Registry Numbers

133883-41-7, 1531584-96-9

CAS INSIGHTSTM
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