Potassium Disulfite GR 500 Grm
for analysis EMSURE®
Manufacturer: Merck
Catalog ID: 105057.0500
Stock: In Stock
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 |
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 |
Storage and Shipping Information
Storage | Store at +5°C to +30°C. |
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 % |