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Potassium Disulfite Powder, Extra Pure,
£57.87 Each (ex VAT)
Potassium Disulfite Powder, Extra Pure,
| Product Code | 12619-1KG |
|---|---|
| Unit of Measure | 1X1KG |
| CAS Number | 16731-55-8 |
| MDL NUMBER | MFCD00167605 |
| EMPIRICAL FORMULA | CHK2O5S2 |
| Molecular Weight | 222.32 |
| Synonyms | Potassium Metabisulfite; Potassium Pyrosulfite |
| Brand | SIGMA-ALDRICH |
Properties
| Property | Value |
|---|---|
| eCl@ss | 32160000 |
| Shipped on ICE | STD |
| UNSPSC Code | 12352302 |
| ADRSuff | 1 |
| CAS Number | 16731-55-8 |
| EINECSNo | 240-795-3 |
| GHS Categories | Eye Dam. 1 |
| GHS Hazard Codes | H318 |
| GHS Hazard Statements | Causes serious eye damage. |
| GHS Pictograms | GHS05 |
| GHS Precaution Codes | P280 - P305 + P351 + P338 + P310 |
| GHS Precaution Statements | Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
| GHS Signal Words | Danger |
| Hazard Symbols | Xi |
| Hazard Symbols Descriptions | Irritant |
| MDL Number | MFCD00167605 |
| Molecular Formula | CHK2O5S2 |
| Molecular Weight | 222.32 |
| Net Weight | 1 |
| R-Phrases | 31-41 |
| RTECSNo | TT4920000 |
| S-Phrases | 26-39 |
| Synonyms | Potassium metabisulfite; Potassium pyrosulfite |
| Tariff Number | 28322000000 |
| MSDS Link | https://www.sigmaaldrich.com/MSDS/MSDS/DisplayMSDSPage.do?country=DElanguage=ENproductNumber=12619brand=SIGALD |
| InChI | 1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2 |
| impurities | residual solvents, in accordance |
| InChI key | RWPGFSMJFRPDDP-UHFFFAOYSA-L |
| cation traces | Se: <=5 mg/kg |
| Quality Level | 100 |
| Assay | 95.0-101.0% (iodometric) |
| grade | puriss. |
| SMILES string | [K+].[K+].[O-]S(=O)S([O-])(=O)=O |
| suitability | in accordance for appearance of solution |
| quality | meets analytical specification of Ph.Eur., BP, NF, FCC, E224 |
| Anion Traces | chloride (Cl-): <=100 mg/kg |
| pH | 3.5-4.5 (20 C, 5%) |
| form | powder |
Description
Potassium Disulfite Powder, Extra Pure,