105057 Potassium disulfite

105057
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      Overview

      Replacement Information

      Key Specifications Table

      CAS #EC NumberHill FormulaChemical FormulaMolar Mass
      16731-55-8 240-795-3 K₂O₅S₂ K₂S₂O₅ 222.33 g/mol

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      1050570500
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          Plastic bottle 500 g
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          1050571000
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              Plastic bottle 1 kg
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              1050572500
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                  Plastic bottle 2.5 kg
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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
                  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 Pictogram(s)
                  Hazard Statement(s)H318: Causes serious eye damage.
                  H335: May cause respiratory irritation.
                  EUH031: Contact with acids liberates toxic gas.
                  Precautionary Statement(s)P280: Wear eye 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.
                  P313: Get medical advice/ attention.
                  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
                  Hazard Symbols Hazard SymbolsIrritant
                  Categories of dangerirritant
                  R PhraseR 31-37-41
                  Contact with acids liberates toxic gas.Irritating to respiratory system.Risk of serious damage to eyes.
                  S PhraseS 26-39
                  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear eye/face protection.
                  Product Usage Statements
                  Storage and Shipping Information
                  StorageStore at +5°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 %