Chromium(III) Potassium Sulfate Dodecahydrate 250G
for analysis EMSURE® ACS,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 101036.0250
Stock: In Stock
Description
| Catalogue Number | 101036 |
| Synonyms | Potassium chromium(III) sulfate, Alum chrome |
| Description | Chromium(III) potassium sulfate dodecahydrate |
Product Information
| CAS number | 7788-99-0 |
| EC number | 233-401-6 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | CrKO₈S₂ * 12 H₂O |
| Chemical formula | KCr(SO₄)₂ * 12H₂O |
| Molar Mass | 499.41 g/mol |
| HS Code | 2833 30 00 |
Physicochemical Information
| Density | 1.83 g/cm3 (20 °C) |
| Melting Point | 89 °C |
| pH value | 3 (50 g/l, H₂O, 20 °C) |
| Bulk density | 800 - 1000 kg/m3 |
| Solubility | 250 g/l |
Storage and Shipping Information
| Storage | Store at +15°C to +25°C. |
Specifications
| Assay (iodometric) | 99.0 - 102.0 % |
| Identity | passes test |
| Insoluble matter | ≤ 0.01 % |
| Chloride (Cl) | ≤ 0.002 % |
| Heavy metals (as Pb) | ≤ 0.01 % |
| Al (Aluminium) | ≤ 0.005 % |
| Cu (Copper) | ≤ 0.001 % |
| Fe (Iron) | ≤ 0.010 % |
| NH₄ (Ammonium) | ≤ 0.010 % |
| Pb (Lead) | ≤ 0.005 % |
