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  7. Potassium metabisulfite, 95+%, Thermo Scientific Chemicals

Potassium metabisulfite, 95+%, Thermo Scientific Chemicals

Product Code. 11324958
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Quantity:
100 g
500 g
2 kg
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Description

CAS: 16731-55-8 | K2O5S2 | 222.31 g/mol

It serves as a component of certain photographic developers and its solution is used in photographic fixing, in the textile industry for dyeing and cotton printing. It is utilized to precipitate gold from solution in aqua regia.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 16731-55-8
Molecular Formula K2O5S2
Molecular Weight (g/mol) 222.31
MDL Number MFCD00167605
InChI Key RWPGFSMJFRPDDP-UHFFFAOYSA-L
Synonym potassium metabisulfite, potassium disulfite, potassium pyrosulfite, dipotassium disulfite, dipotassium pyrosulfite, dipotassium metabisulfite, dipotassium disulphite, unii-65oe787q7w, ccris 1427, potassium disulfite k2s2o5
PubChem CID 28019
IUPAC Name dipotassium sulfinatosulfonate
SMILES [K+].[K+].[O-]S(=O)S([O-])(=O)=O

Specifications

Melting Point 190°C (decomposition)
Color White
Physical Form Powder
Quantity 100 g
Assay Percent Range >99%
Solubility Information Soluble in water. Insoluble in ethanol.
Formula Weight 222.32
Odor Pungent
Sensitivity Air Sensitive
Chemical Name or Material Potassium metabisulfite

Safety and Handling

compliance-icons
Product Identifier
  • Potassium metabisulfite
 Signal Word
  • Danger
 Hazard Category
  • Serious eye damage/eye irritation Category 1
 Hazard Statement
  • H318-Causes serious eye damage.
  • EUH031-Contact with acids liberates toxic gas.
 Precautionary Statement
  • P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P310-Immediately call a POISON CENTER/doctor/.
 Supplemental information
  • MIXTURE LIST-Contains : Potassium metabisulfite
SDS

RUO – Research Use Only

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