Millipore Sigma Vibrant Logo

105056 Potassium disulfite

E 224

Potassium disulfite MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: Potassium metabisulfite, Potassium pyrosulfite

CAS #: 16731-55-8 EC Number: 240-795-3 Molar Mass: 222.33 g/mol Chemical Formula: K₂S₂O₅ Hill Formula: K₂O₅S₂ Grade: E 224
View This Product on Sigma-Aldrich
105056
View Pricing & Availability

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
16731-55-8240-795-3K₂O₅S₂K₂S₂O₅222.33 g/molE 224

Pricing & Availability

Catalogue Number AvailabilityPackaging Qty/Pack Price Quantity
1.05056.5000
Retrieving availability...
—
Limited Availability Limited Availability
In Stock 
Discontinued
Limited Quantities Available
Availability to be confirmed
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      		 Plastic bottle 5 kg
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity is a multiple of
      Maximum Quantity is
      Upon Order Completion More Information
      You Saved ()
       
      —
      Request Pricing
      		 —
      1.05056.9029
      Retrieving availability...
      —
      Limited Availability Limited Availability
      In Stock 
      Discontinued
      Limited Quantities Available
      Availability to be confirmed
        Remaining : Will advise
          Remaining : Will advise
          Will advise
          Contact Customer Service
          Contact Customer Service

          		 Double PE Sack 25 kg
          Retrieving price...
          Price could not be retrieved
          Minimum Quantity is a multiple of
          Maximum Quantity is
          Upon Order Completion More Information
          You Saved ()
           
          —
          Request Pricing
          		 —
          Description
          Catalogue Number105056
          SynonymsPotassium metabisulfite, Potassium pyrosulfite
          References
          Product Information
          CAS number16731-55-8
          EC number240-795-3
          GradeE 224
          Hill FormulaK₂O₅S₂
          Chemical formulaK₂S₂O₅
          Molar Mass222.33 g/mol
          HS Code2832 20 00
          Quality LevelMQ400
          Applications
          Biological Information
          Physicochemical Information
          Melting Point150 °C (decomposition)
          pH value3.0 - 4.5 (50 g/l, H₂O, 20 °C)
          Bulk density1000 - 1300 kg/m3
          Solubility450 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat 2300 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Statement(s)H318: Causes serious eye damage.
          EUH031: Contact with acids liberates toxic gas.
          Precautionary Statement(s)P280: Wear eye protection/ face protection.
          P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
          P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
          Signal WordDanger
          RTECSTT4920000
          Storage class10 - 13 Other liquids and solids
          WGKWGK 1 slightly hazardous to water
          Disposal6
          Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.
          Safety Information
          Categories of dangerirritant
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +15°C to +25°C.
          Packaging Information
          Transport Information
          Declaration (railroad and road) ADR, RIDKein Gefahrgut
          Declaration (transport by air) IATA-DGRUN 3335 , 9, III
          Declaration (transport by sea) IMDG-CodeNo Dangerous Good
          Supplemental Information
          Specifications
          Assay (iodometric)95.0 - 101.0 %
          Assay (iodometric, SO₂)54.8 - 57.6 %
          Identitypasses test
          Appearance of solutionpasses test
          pH-value (5 %; water)3.0 - 4.5
          Chloride (Cl)≤ 0.05 %
          Heavy metals (as Pb)≤ 0.001 %
          Thiosulfate (S₂O₃)passes test
          As (Arsenic)≤ 0.0002 %
          Cu (Copper)≤ 0.0025 %
          Fe (Iron)≤ 0.0005 %
          Hg (Mercury)≤ 0.0001 %
          Pb (Lead)≤ 0.0002 %
          Se (Selenium)≤ 0.00025 %
          Zn (Zinc)≤ 0.0025 %
          Meets analytical specifications of Ph Eur, NF, E224
          conforms to Ph Eur, NF, E224
          conforms to Ph Eur, NF, E224
          Global Trade Item Number
          Catalogue Number GTIN
          1.05056.5000 04022536060033
          1.05056.9029 04022536946122

          Documentation

          Potassium disulfite SDS

          Title

          Safety Data Sheet (SDS) 

          Potassium disulfite Certificates of Analysis

          Product Number PackagingSpecificationLot Number
          1.05056.5000 Plastic bottlePDF Specification Document
          1.05056.9029 Double PE SackPDF Specification Document

          Certificates

          Title

          Related Products & Applications

          Related Products By: Application Facete

          Antioxidants

          Categories

          Small Molecule Pharmaceuticals > Formulation > Liquid Dosage Form > Antioxidants
          Biopharmaceutical Manufacturing > Formulation > Liquid Dosage > Preservatives
          Small Molecule Pharmaceuticals > Formulation > Liquid Dosage Form > Preservatives
          Small Molecule Pharmaceuticals > Formulation > Semisolid Dosage Form > Preservatives
          Small Molecule Pharmaceuticals > Formulation > Semisolid Dosage Form > Antioxidants
          Biopharmaceutical Manufacturing > Formulation > Liquid Dosage > Antioxidants