MERCK 105057.1000 Potassium Disulfite GR CAS No.16731-55-8
| Description |
|---|
| Catalogue Number | 105057 |
| Synonyms | Potassium metabisulfite, Potassium pyrosulfite |
| Product Information |
|---|
| CAS number | 16731-55-8 |
| EC number | 240-795-3 |
| Hill Formula | K₂O₅S₂ |
| Chemical formula | K₂S₂O₅ |
| Molar Mass | 222.33 g/mol |
| HS Code | 2832 20 00 |
| Quality Level | MQ300 |
| Physicochemical Information |
|---|
| Melting Point | 150 °C (decomposition) |
| pH value | 3.0 - 4.5 (50 g/l, H₂O, 20 °C) |
| Bulk density | 1000 - 1300 kg/m3 |
| Solubility | 450 g/l |
| Toxicological Information |
|---|
| LD 50 oral | LD50 Rat 2300 mg/kg |
| Safety Information according to GHS |
|---|
| Hazard Pictogram(s) | |
| Hazard Statement(s) | H318: Causes serious eye damage.EUH031: Contact with acids liberates toxic gas. |
| Precautionary Statement(s) | P280: Wear eye protection/ face protection.P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.P403 + P233: Store in a well-ventilated place. Keep container tightly closed. |
| Signal Word | Danger |
| RTECS | TT4920000 |
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly hazardous to water |
| Disposal | 6Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E. |
| Safety Information |
|---|
| Categories of danger | irritant |
| Storage and Shipping Information |
|---|
| Storage | Store at +2°C to +30°C. |
| Transport Information |
|---|
| Declaration (railroad and road) ADR, RID | Kein Gefahrgut |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
| Specifications |
|---|
| Assay (iodometric) | ≥ 96 % |
| In water insoluble matter | ≤ 0.005 % |
| Chloride (Cl) | ≤ 0.005 % |
| As (Arsenic) | ≤ 0.0001 % |
| Cu (Copper) | ≤ 0.001 % |
| Fe (Iron) | ≤ 0.0005 % |
| Pb (Lead) | ≤ 0.001 % |
| Zn (Zinc) | ≤ 0.001 % |
| Global Trade Item Number |
|---|
| Catalogue Number | GTIN |
|---|
| 1050570500 | 04022536060095 |
| 1050571000 | 04022536060101 |
| 1050572500 | 04022536060125 |
