Potassium pyrosulfite - ≥97% , CAS No.16731-55-8

CAS: 16731-55-8 Cat. No.: P401412 Fórmula: K₂S₂O₅ Peso molecular: 222.32 Número EC: 240-795-3

GRADE & PURITY ≥97%

Synonyms

POTASSIUM METABISULFITE [MI] | CCRIS 1427 | Potassium metabisulfite (NF) | Q417881 | J-010353 | Potassium metabisulfite (e 224) | Potassium disulfite, analytical standard | POTASSIUM METABISULFITE [WHO-DD] | Dipotassium pyrosulfite | HSDB 5062 | POTASSIUM

Storage

Room temperature,Argon charged

Shipped In

Normal

Descripción general

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.

General description
Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.
Application
Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces.
It may be used in the following processes:
Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films.
Decolorization during the synthesis of 2-iodopyrimidine derivatives.
Palladium-catalyzed aminosulfonylation of aryl halides.

Specifications

Sinónimos

POTASSIUM METABISULFITE [MI] | CCRIS 1427 | Potassium metabisulfite (NF) | Q417881 | J-010353 | Potassium metabisulfite (e 224) | Potassium disulfite, analytical standard | POTASSIUM METABISULFITE [WHO-DD] | Dipotassium pyrosulfite | HSDB 5062 | POTASSIUM

Especificaciones y pureza

≥97%

Condiciones de almacenamiento de almacenamiento

Room temperature,Argon charged

Enviado en

Normal

Pureza

≥97%

Nombres e identificadores

• Pubchem Sid: 504753375
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/504753375
• Sonrisas canónicas: [O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
• InChIKey: RWPGFSMJFRPDDP-UHFFFAOYSA-L
• INCHI: 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• Isómeros SMILES: [O-]S(=O)S(=O)(=O)[O-].[K+].[K+]
• Número ONU: 1759
• Grupo de embalaje: I
• Peso molecular: 222.32
• Reaxy-Rn: 14412766
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=14412766&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Clase Alkali metal oxoanionic compounds
      • Subclass Alkali metal dithionites

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Clase: Alkali metal oxoanionic compounds
• Subclass: Alkali metal dithionites
• Intermediate Tree Nodes: Not available
• Direct Parent: Alkali metal dithionites
• Alternative Parents: Inorganic salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Alkali metal dithionite - Inorganic oxide - Inorganic salt
• Descripción: This compound belongs to the class of inorganic compounds known as alkali metal dithionites. These are inorganic compounds in which the largest oxoanion is dithionite, 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

Propiedades químicas y físicas

• Solubilidad: Soluble in water. Insoluble in ethanol.
• Sensibilidad: Air & Moisture Sensitive
• Punto de fusión (°C): 190°C
• Peso molecular: 222.330 g/mol
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 221.846 Da
• Monoisotopic Mass: 221.846 Da
• Topological Polar Surface Area: 125.000 Ų
• Heavy Atom Count: 9
• Formal Charge: 0
• Complexity: 136.000
• 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