Millipore Sigma Vibrant Logo

105057 Potassium disulfite

for analysis EMSURE®

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
View Products on Sigmaaldrich.com
105057
View Pricing & Availability

Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar Mass
16731-55-8240-795-3K₂O₅S₂K₂S₂O₅222.33 g/mol

Pricing & Availability

Catalogue Number AvailabilityPackaging Qty/Pack Price Quantity
1050570500
Retrieving availability...
—
Fulfillment and Delivery Delayed Fulfillment and Delivery Delayed
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 500 g
      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
      		 —
      1050571000
      Retrieving availability...
      —
      Fulfillment and Delivery Delayed Fulfillment and Delivery Delayed
      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 1 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
          		 —
          1050572500
          Retrieving availability...
          —
          Fulfillment and Delivery Delayed Fulfillment and Delivery Delayed
          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 2.5 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
              		 —
              Description
              Catalogue Number105057
              SynonymsPotassium metabisulfite, Potassium pyrosulfite
              References
              Product Information
              CAS number16731-55-8
              EC number240-795-3
              Hill FormulaK₂O₅S₂
              Chemical formulaK₂S₂O₅
              Molar Mass222.33 g/mol
              HS Code2832 20 00
              Quality LevelMQ300
              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 +2°C to +30°C.
              Packaging Information
              Transport Information
              Declaration (railroad and road) ADR, RIDKein Gefahrgut
              Declaration (transport by air) IATA-DGRNo Dangerous Good
              Declaration (transport by sea) IMDG-CodeNo Dangerous Good
              Supplemental Information
              Specifications
              Assay (iodometric)≥ 96 %
              In water insoluble matter≤ 0.005 %
              Chloride (Cl)≤ 0.005 %
              As (Arsenic)≤ 0.0001 %
              Cu (Copper)≤ 0.001 %
              Fe (Iron)≤ 0.0005 %
              Pb (Lead)≤ 0.001 %
              Zn (Zinc)≤ 0.001 %
              Global Trade Item Number
              Catalogue Number GTIN
              1050570500 04022536060095
              1050571000 04022536060101
              1050572500 04022536060125