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CAS 16731-55-8: pirosulfito de potasio

Descripción:
pirosulfito de potasio, también conocido como metabisulfito de potasio, es un compuesto inorgánico con la fórmula K2S2O5. Aparece como un polvo cristalino blanco y es altamente soluble en agua, donde se disocia para liberar iones sulfito. Este compuesto se utiliza comúnmente como conservante y antioxidante en alimentos y bebidas, particularmente en la vinificación, debido a su capacidad para inhibir el crecimiento microbiano y la oxidación. Además de sus aplicaciones alimentarias, pirosulfito de potasio se utiliza en varios procesos industriales, incluida la fotografía y el tratamiento de agua, donde actúa como agente reductor. Tiene una toxicidad relativamente baja, pero la exposición puede causar irritación en el sistema respiratorio y la piel. El compuesto es estable en condiciones normales, pero debe almacenarse en un lugar fresco y seco, alejado de ácidos fuertes y agentes oxidantes para prevenir la descomposición. En general, pirosulfito de potasio es valorado por su versatilidad y efectividad tanto en la conservación de alimentos como en aplicaciones industriales.
Fórmula:H2O5S2·2K
InChI:InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)
Clave InChI:InChIKey=TWDUAWOEUFKDNM-UHFFFAOYSA-N
SMILES:S(S(=O)O)(=O)(=O)O.[K]
Sinónimos:
  • Bisulfite de dipotassium
  • Dikaliumdisulfit
  • Dipotassium Disulphite
  • Dipotassium disulfite
  • Dipotassium metabisulfite
  • Dipotassium pyrosulfite
  • Disulfite De Dipotassium
  • Disulfito De Dipotasio
  • Disulfurous acid, potassium salt (1:2)
  • E 224
  • Kadifit
  • Ver más sinónimos
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Encontrado 10 productos.
  • Potassium disulfite

    CAS:
    Pureza:95.0%
    Forma y color:Solid, White powder
    Peso molecular:222.30999755859375

    Ref: 10-F095812

    25g
    A consultar
    100g
    46,00€
  • Potassium metabisulfite, 98%

    CAS:
    Fórmula:K2S2O5
    Pureza:≥ 98.0%
    Forma y color:White crystalline powder or colourless crystals
    Peso molecular:222.23

    Ref: 7W-GX3502

    1kg
    94,00€
    500g
    57,00€
  • Disulfurous acid, potassium salt (1:2)

    CAS:
    Fórmula:K2O5S2
    Pureza:95%
    Forma y color:Solid
    Peso molecular:222.3236

    Ref: IN-DA001XB1

    25g
    21,00€
    100g
    25,00€
    500g
    25,00€
  • Potassium Metabisulfite (2:1)

    CAS:
    Applications Potassium Metabisulfite (2:1) is used as a chemical preservative. References Kuang, Y.T., et. al.: J. Food Process. Pres., 39, 56 (2015)
    Fórmula:K2O5S2
    Forma y color:Neat
    Peso molecular:222.32

    Ref: TR-P698070

    10g
    116,00€
  • Potassium metabisulfite

    CAS:
    Potassium metabisulfite is a chemical compound that has been used as an antimicrobial agent to inhibit microbial growth in pharmaceutical products. It is also used as a preservative in wine and fruit juice. Potassium metabisulfite reacts with hydrogen fluoride, which produces the highly reactive chemical compound, potassium tetrafluoroborate. This reaction can be catalyzed by palladium-catalyzed coupling. The mechanism of action of potassium metabisulfite is not well understood, but it may involve the formation of a complex between the matrix and the bacteria's cell wall, which prevents the bacteria from absorbing nutrients needed for growth. Potassium metabisulfite has been shown to have low toxicity in animal studies.
    Fórmula:K2O5S2
    Pureza:Min. 95%
    Forma y color:Slightly Yellow Powder
    Peso molecular:222.33 g/mol

    Ref: 3D-FP15370

    5kg
    Descatalogado
    Producto descatalogado
  • Potassium metabisulfite

    CAS:
    Fórmula:K2S2O5
    Pureza:≥ 95.0%
    Forma y color:White crystalline powder or colourless crystals
    Peso molecular:222.32

    Ref: 7W-GX0303

    1kg
    81,00€
    5kg
    282,00€
    100g
    22,00€
    250g
    31,00€
    500g
    50,00€
  • Potassium metabisulfite, 97%, extra pure

    CAS:
    This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:K2O5S2
    Pureza:97%
    Forma y color:White to light yellow, Crystalline powder
    Peso molecular:222.31

    Ref: AC-41827

    25g
    Descatalogado
    500g
    Descatalogado
    2500g
    Descatalogado
    Producto descatalogado
  • Potassium metabisulfite, 95+%

    CAS:
    It serves as a component of certain photographic developers and its solution is used in photographic fixing, in the textile industry for dyeing and cotton printing. It is utilized to precipitate gold from solution in aqua regia. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
    Fórmula:K2O5S2
    Pureza:95+%
    Peso molecular:222.31

    Ref: 02-043908

    2kg
    A consultar
    100g
    46,00€
    500g
    148,00€
  • Potassium Disulfite

    CAS:
    Potassium Disulfite
    Peso molecular:222.32g/mol

    Ref: 54-OR1024480

    100g
    32,00€
    500g
    53,00€
  • Potassium Disulfite

    CAS:
    Fórmula:K2S2O5
    Pureza:>97.0%(T)
    Forma y color:White to Almost white powder to crystal
    Peso molecular:222.31

    Ref: 3B-P2480

    25g
    27,00€
    500g
    45,00€