Potassium metabisulfite [16731-55-8]
Order number: 55202280
Part number: AC100070729
![55202280 Potassium metabisulfite [16731-55-8]](https://alliedchemi.com/images/image3.png)
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Potassium Metabisulfite [16731-55-8] is utilized in controlled chemical reactions and formulations, featuring the molecular formula K2S2O5 and a molecular weight of 222.32. It decomposes at approximately 150 °C, making it suitable for applications requiring temperature control. This product carries a GHS Signal Word of ≤2%, indicating potential hazards. As a distinct offering, this Potassium Metabisulfite SKU presents with a purity of ≥97.2%, a pH range of 3.8 - 4.8, and a SO2 content of ≥56%. It appears as a white powder and is stored ambiently.
- CAS Number: 16731-55-8
- GHS Signal Word: ≤2%
- Molecular Formula: K2S2O5
- Molecular Weight: 222.32
- 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 |
