Sodium tripolyphosphate

CAS Registry Number®

7758-29-4
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CAS Name

Sodium tripolyphosphate

Molecular Formula

H5O10P3.5Na

Cite this Page

Sodium tripolyphosphate.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=7758-29-4 (retrieved 2022-09-29) (CAS RN: 7758-29-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    622 °C
  • Density (2)

    2.52 g/cm3

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)
  • (2) International Chemical Safety Cards data were obtained from the National Institute for Occupational Safety and Health (US)

Other Names and Identifiers

InChI

InChI=1S/5Na.H5O10P3/c;;;;;1-11(2,3)9-13(7,8)10-12(4,5)6/h;;;;;(H,7,8)(H2,1,2,3)(H2,4,5,6)

InChIKey

InChIKey=BQIXQQXTKTZDGC-UHFFFAOYSA-N

SMILES

O(P(OP(=O)(O)O)(=O)O)P(=O)(O)O.[Na]

Canonical SMILES

[Na].O=P(O)(O)OP(=O)(O)OP(=O)(O)O

Other Names for this Substance

  • Triphosphoric acid, sodium salt (1:5)
  • Triphosphoric acid, pentasodium salt
  • Pentasodium triphosphate
  • Sodium tripolyphosphate (Na5P3O10)
  • Sodium triphosphate (Na5P3O10)

Deleted or Replaced CAS Registry Numbers

9010-08-6, 187620-23-1, 860389-18-0, 1350716-07-2, 1610338-39-0, 2093160-08-6, 2247930-54-5, 2640487-48-3