Monopotassium phosphate

CAS Registry Number®

7778-77-0
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CAS Name

Monopotassium phosphate

Molecular Formula

H3O4P.K

Cite this Page

Monopotassium phosphate.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=7778-77-0 (retrieved 2022-08-10) (CAS RN: 7778-77-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    253 °C
  • Density (1)

    2.34 g/cm3

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)

InChIKey

InChIKey=PJNZPQUBCPKICU-UHFFFAOYSA-N

SMILES

P(=O)(O)(O)O.[K]

Canonical SMILES

[K].O=P(O)(O)O

Other Names for this Substance

  • Phosphoric acid, potassium salt (1:1)
  • Phosphoric acid, monopotassium salt
  • Monopotassium phosphate
  • Potassium acid phosphate
  • Potassium biphosphate

Deleted or Replaced CAS Registry Numbers

943540-09-8, 1364712-44-6, 2133444-20-7, 2364332-00-1, 2484993-14-6