Potassium Metabisulphite Powder
Product Specifications
DFI-516724DFI-474369
DFI-516724
| Description | |
|---|---|
| Appearance: | White fine crystalline powder |
| CAS No.: | 16731-55-8 |
| Chemical name: | Potassium Metabisulfite, K2S2O5 |
| Country of origin: | Germany |
| E number: | E224 |
| EINECS No.: | 240-795-3 |
| Odour: | Odour of SO2 |
| Shelf life: | 24 months |
| Specifications | |
| Arsenic: | Max: 1mg/kg, ppm |
| Assay: | Min: 97.2g/100g |
| Cadmium: | Max: 1mg/kg, ppm |
| Chloride (Cl): | Max: 0.5g/kg |
| Content: | Remainder |
| Copper: | Max: 1mg/kg, ppm |
| Heavy metals: | Max: 10mg/kg, ppm |
| Iron (Fe): | Max: 5mg/kg, ppm |
| Lead: | Max: 1mg/kg, ppm |
| Mercury: | Max: 0.1mg/kg, ppm |
| pH: | 3.8 to 4.8 |
| Selenium: | Max: 1mg/kg, ppm |
| Sodium (Na): | Max: 2g/100g |
| Sulphur Dioxide (SO2): | Min: 56g/100g |
| Thiosulphates: | Max: 0.01g/100g |
| Zinc: | Max: 1mg/kg, ppm |
Published Date: 2022-01-07 13:51:07
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DFI-474369
| Description | |
|---|---|
| Appearance: | White crystalline powder, with slight odour of sulphur dioxide |
| CAS No.: | 16731-55-8 |
| Country of origin: | Italy |
| EC Number: | 240-795-3 |
| Formula: | K2S2O5 |
| Molecular weight: | 222.33 |
| Packaging: | 25 kg polyethylene bags |
| Shelf life: | 48 months |
| Storage: | Store the product in a dry and cool place because the wet product easily oxidises to potassium sulphate, while heated over 60ºC develops SO2, yielding potassium sulphite. |
| Synonyms: | Potassium bisulphite anhydrous, potassium pyrosulphite, potassium disulphite |
| Uses: | In the photographic industry as component of developer bath. In food industry as additive (E224) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In chemical synthesis in the production of vitamins, pharmaceutical intermediates, etc. |
| Specifications | |
| Arsenic: | <3 mg/kg, ppm |
| Assay: | >56% |
| Assay: | >97.2% |
| Heavy metals: | <10 mg/kg, ppm |
| Iron (Fe): | <5 mg/kg, ppm |
| Lead: | <2 mg/kg, ppm |
| Mercury: | <1 mg/kg, ppm |
| Selenium: | <2 mg/kg, ppm |
| Specific Gravity: | 1 to 1.3kg/dm³ |
| Sulphate: | <2.8% |
| Thiosulphate (S2O3): | Max: 0.04% |
Published Date: 2022-10-19 14:07:55
