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105057 Potassium disulfite

Overview

Replacement Information

Key Spec Table

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

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1050570500
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      Plastic bottle 500 g
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      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