Potassium phosphite , CAS No.13492-26-7

CAS: 13492-26-7 Cat. No.: P962823 Molecular Weight: 160.19 EC Number: 236-809-2 PubChem CID: 21889738

Storage

Room temperature

Specifications

Storage

Room temperature

Names and Identifiers

• Canonical Smiles: [O-][P+](=O)[O-].[K+].[K+]
• IUPAC Name: dipotassium;dioxido(oxo)phosphanium
• InChIKey: YXXXKCDYKKSZHL-UHFFFAOYSA-M
• INCHI: 1S/2K.HO3P/c;;1-4(2)3/h;;(H,1,2,3)/q2*+1;/p-1
• Isomeric SMILES: [O-][P+](=O)[O-].[K+].[K+]
• PubChem CID: 21889738
• Molecular Weight: 160.19

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Alkali metal oxoanionic compounds
      • Subclass Alkali metal phosphonates

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Alkali metal oxoanionic compounds
• Subclass: Alkali metal phosphonates
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal phosphonates
• Alternative Parents: Inorganic salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Alkali metal phosphonate - Inorganic oxide - Inorganic salt
• Description: This compound belongs to the class of inorganic compounds known as alkali metal phosphonates. These are inorganic compounds in which the largest oxoanion is phosphonate, and in which the heaviest atom not in an oxoanion is an alkali metal.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Molecular Weight: 157.169 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 156.886 Da
• Monoisotopic Mass: 156.886 Da
• Topological Polar Surface Area: 63.200 Ų
• Heavy Atom Count: 6
• Formal Charge: 1
• Complexity: 18.800
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 3

XLogP3

References

1. Jin Zhang, Zixin Chen, Zerong Bian, Huixian Ma, Kun Liang, Meiling Liu, Xincheng Li, Yunwei Wang, Ruiyi Wang, Zhanfeng Zheng.  (2026)  Unraveling phosphate anion modification on Pt/TiO2 catalysts for specific conversion in CO2 hydrogenation.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2026.166724]