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CAS 16731-55-8: Potassium pyrosulfite

Formula:H2O5S2·2K
InChI:InChI=1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)
InChI key:InChIKey=TWDUAWOEUFKDNM-UHFFFAOYSA-N
SMILES:S(S(=O)O)(=O)(=O)O.[K]
Synonyms:
  • 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
  • See more synonyms
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Found 10 products.
  • Potassium disulfite

    CAS:
    Purity:95.0%
    Color and Shape:Solid, White powder
    Molecular weight:222.30999755859375

    Ref: 10-F095812

    25g
    To inquire
    100g
    46.00€
  • Potassium metabisulfite, 98%

    CAS:
    Formula:K2S2O5
    Purity:≥ 98.0%
    Color and Shape:White crystalline powder or colourless crystals
    Molecular weight:222.23

    Ref: 7W-GX3502

    1kg
    94.00€
    500g
    57.00€
  • Disulfurous acid, potassium salt (1:2)

    CAS:
    Formula:K2O5S2
    Purity:95%
    Color and Shape:Solid
    Molecular weight: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)
    Formula:K2O5S2
    Color and Shape:Neat
    Molecular weight: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.
    Formula:K2O5S2
    Purity:Min. 95%
    Color and Shape:Slightly Yellow Powder
    Molecular weight:222.33 g/mol

    Ref: 3D-FP15370

    5kg
    Discontinued
    Discontinued product
  • Potassium metabisulfite

    CAS:
    Formula:K2S2O5
    Purity:≥ 95.0%
    Color and Shape:White crystalline powder or colourless crystals
    Molecular weight: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.
    Formula:K2O5S2
    Purity:97%
    Color and Shape:White to light yellow, Crystalline powder
    Molecular weight:222.31

    Ref: AC-41827

    25g
    Discontinued
    500g
    Discontinued
    2500g
    Discontinued
    Discontinued product
  • 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.
    Formula:K2O5S2
    Purity:95+%
    Molecular weight:222.31

    Ref: 02-043908

    2kg
    To inquire
    100g
    46.00€
    500g
    148.00€
  • Potassium Disulfite

    CAS:
    Potassium Disulfite
    Molecular weight:222.32g/mol

    Ref: 54-OR1024480

    100g
    32.00€
    500g
    53.00€
  • Potassium Disulfite

    CAS:
    Formula:K2S2O5
    Purity:>97.0%(T)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:222.31

    Ref: 3B-P2480

    25g
    27.00€
    500g
    45.00€