1.05056

Potassium disulfite

E 224

• Synonym(s): Potassium disulfite, Potassium metabisulfite, Potassium pyrosulfite
• Empirical Formula (Hill Notation): K₂O₅S₂
• CAS Number: 16731-55-8
• Molecular Weight: 222.32
• MDL number: MFCD00167605
• UNSPSC Code: 12352302
• E Number: E224
• EC Index Number: 240-795-3

Properties

• Quality Level: 400
• form: solid
• pH: 3.0-4.5 (20 °C, 50 g/L in H₂O)
• mp: 150 °C (decomposition)
• application(s): pharma/biopharma processes
• storage temp.: 15-25°C
• InChI: 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• InChI key: RWPGFSMJFRPDDP-UHFFFAOYSA-L

Description

General description

We offer a range of high quality critical raw materials plus the documentation and expertise to help our customers meet stringent regulatory requirements. Our SAFC^® portfolio of high-quality products withstands strict quality control procedures.

Application

Potassium disulfite shows preservative and antioxidant properties. Potassium disulfite E224 is suitable for use in pharmaceutical processes and as food additive.

Legal Information

Emprove is a registered trademark of Merck KGaA, Darmstadt, Germany

SAFC is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H318
• pcodes: P280 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1
• supp_hazards: EUH031
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1