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CAS RN: 16731-55-8 | Product Number: P2480
Potassium Disulfite
×
Purity: >97.0%(T)
Synonyms:
- Potassium Metabisulfite
- Potassium Pyrosulfite
Product Documents:
| Size | Unit Price | Belgium | Japan* |
Shipping Information
|
|---|---|---|---|---|
| 25G |
€ 17,00
|
2 | 13 | |
| 500G |
€ 32,00
|
2 | 8 |
* Stock available in Belgium: Shipment on the same day
* Stock available in Japan: Please check the Shipping Simulation for estimated shipments. (excludes regulated items and dry ice shipments)
| Product Number | P2480 |
Purity / Analysis Method 
|
>97.0%(T) |
| Molecular Formula / Molecular Weight | K__2S__2O__5 = 222.31 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 16731-55-8 |
| Reaxys Registry Number | 14412766 |
| PubChem Substance ID | 354334090 |
| Merck Index (14) | 7645 |
| MDL Number | MFCD00167605 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity | min. 97.0 % |
| IR | confirm to structure |
Properties (reference)
| Melting Point | 190 °C(dec.) |
| Maximum Absorption Wavelength | 267 nm (H__2O) |
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H318 : Causes serious eye damage. |
| Precautionary Statements | P280 : Wear eye protection/ face protection. P305 + P351 + P338 + P310 : 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/doctor. |
Related Laws:
| EC Number | 240-795-3 |
| RTECS# | TT4920000 |
Transport Information:
| HS Number | 2832200000 |
Application
An Antioxidant and an Antimicrobial Additive
Potassium disulfite is used as an antioxidant or an antimicrobial additive in mainly the food industry. (The product is not food-grade and is for research purpose only.)
References
- Chemical composition, enzyme activity and effect of enzyme inactivation on flavor quality of green coconut water
- Influence of chemical additives on the stability of dried tomato powder
- Mutagenicity of five food additives in Ames/Salmonella/microsome test
- Effect of pH on potassium metabisulphite biocidic activity against yeast and human cell cultures
Application
Direct Sulfonation of Aryl Boronic Acids using Potassium Disulfite as a SO2 Source
Reference
- 1)Palladium-Catalyzed Synthesis of (Hetero)Aryl Alkyl Sulfones from (Hetero)Aryl Boronic Acids, Unactivated Alkyl Halides, and Potassium Metabisulfite
PubMed Literature
Product Articles
[Product Highlights] Direct Sulfonation of Aryl Boronic Acids using Potassium Disulfite as a SO2 Source
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