Potassium metabisulfite, 97%, extra pure

Description

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

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

Reduction reagent

Specifications

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

• Melting Point: 150.0°C
• Color: White to Yellow
• Physical Form: Fine Crystalline Powder
• Quantity: 25 g
• Assay Percent Range: 96% min. (Iodimetry)
• Linear Formula: K₂S₂O₅
• Merck Index: 15, 7766
• Solubility Information: Solubility in water: 45g/L (20°C). Other solubilities: insoluble in ethanol
• Formula Weight: 222.33
• Percent Purity: 97%
• Grade: Extra Pure
• Packaging: Glass bottle
• Chemical Name or Material: Potassium metabisulfite, 97%

Safety and Handling

Hazard Category	GHS Signal Word: Danger
Hazard Statement	GHS H Statement Causes serious eye damage. Contact with acids liberates toxic gas.
Precautionary Statement	GHS P Statement IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses,if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician.
EINECSNumber	240-795-3
RTECSNumber	TT4920000
TSCA	TSCA

SDS

RUO – Research Use Only