Potassium Metabisulfite [16731-55-8] is supplied to meet the demands of controlled research workflows, featuring a molecular formula of K2S2O5 and a molecular weight of 222.33. It decomposes at approximately 150 °C, signifying caution when handling due to the Danger signal word. This compound may cause skin irritation and harm if swallowed, as indicated by the Hazard Statements H315 and H302 respectively.

• CAS Number: 16731-55-8
• Exact Mass: 221.8461284
• Molecular Weight: 222.33
• Molecular Formula: K2S2O5
• GHS Signal Word: Danger
• Melting Point: Decomposes at approximately 150 °C
• Hazard Statements:
• H315: Causes skin irritation [Warning Skin corrosion/irritation]
• H302: Harmful if swallowed [Warning Acute toxicity, oral]