Potassium metabisulfite [16731-55-8]
Order number: 55202280
Part number: AC100070729
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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]
| Name | Value | |
|---|---|---|
| Cl | : | ≤0.5% |
| Na | : | ≤2% |
| pH | : | 3.8 - 4.8 |
| CAS | : | 16731-55-8 |
| SO2 | : | ≥56% |
| Assay | : | ≥97.2% |
| Appearance | : | White powder |
| Categories | : | Building Blocks Inorganic Chemicals Salts |
| Thiosulfate | : | ≤0.1% |
| Product Code | : | 55202280 |
| Product Name | : | Potassium metabisulfite |
| Storage Details | : | Ambient |
| Molecular Weight | : | 222.32 |
| Molecular Formula | : | K2S2O5 |
| Harmonised Tariff Code | : | 2832200000 |
