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Merck - 1065281000 - Sodium disulfite

  • MFR SKU: 1065281000
  • ITEM #: 7231620
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ITEM #: 7231620
(sodium metabisulfite) for analysis EMSURE® ACS, Reag. Ph Eur
This listing is for 1 kg Plastic bottle

Merck - 1065281000 - Sodium disulfite

  • Item #: 7231620
  • MFR SKU: 1065281000
  • Catalogue Number 106528
  • Synonyms Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite
  • CAS number 7681-57-4
  • EC index number 016-063-00-2
  • EC number 231-673-0
  • Grade ACS, Reag. Ph Eur
  • Hill Formula NaOS
  • Molar Mass 190.11 g/mol
  • HS Code 2832 10 00
  • Quality Level MQ300
  • Density 2.36 g/cm3 (20 ° C)
  • Melting Point 300 ° C (decomposition)
  • pH value 4.5 (50 g/l, HO, 20 ° C)
  • Bulk density 1000 - 1200 kg/m3
  • Solubility 650 g/l
  • LD 50 oral LD50 Rat 1540 mg/kg
  • LD 50 dermal LD50 Rat > 2000 mg/kg
  • Hazard Pictogram(s)
  • Hazard Statement(s) H302: Harmful if swallowed.
  • H318: Causes serious eye damage.
  • EUH031: Contact with acids liberates toxic gas.
  • Precautionary Statement(s) P264: Wash skin thoroughly after handling.
  • P270: Do not eat, drink or smoke when using this product.
  • P280: Wear eye protection/ face protection.
  • P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
  • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P501: Dispose of contents/ container to an approved waste disposal plant.
  • Signal Word Danger
  • RTECS UX8225000
  • Storage class 10 - 13 Other liquids and solids
  • WGK WGK 1 slightly hazardous to water
  • Disposal 6
  • 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.
  • Categories of danger harmful, irritant
  • Storage Store at +2° C to +30° C.
  • Assay (iodometric) 98.0 - 100.5 %
  • Identity passes test
  • Appearance of solution passes test
  • pH-value (5 %; water) 3.5 - 5.0
  • Insoluble matter ≤ 0.005 %
  • Chloride (Cl) ≤ 0.005 %
  • Thiosulfate (SO)
  • ≤ 0.05 %
  • passes test
  • Heavy metals (as Pb) ≤ 0.001 %
  • As (Arsenic) ≤ 0.0001 %
  • Fe (Iron) ≤ 0.0005 %

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