Aluminium Potassium Sulfate Dodecahydrate GR 1kg
for analysis EMSURE® ACS,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 101047.1000
Stock: In Stock
Description
| Catalogue Number | 101047 |
| Synonyms | Potassium aluminium sulfate, Alum potassium, Potassium alum |
Product Information
| CAS number | 7784-24-9 |
| EC number | 233-141-3 |
| Grade | ACS,Reag. Ph Eur |
| Hill Formula | AlKO₈S₂ * 12 H₂O |
| Chemical formula | KAl(SO₄)₂ * 12 H₂O |
| Molar Mass | 474.39 g/mol |
| HS Code | 2833 30 00 |
Physicochemical Information
| Density | 1.75 g/cm3 (20 °C) |
| Melting Point | 92.5 °C |
| pH value | 3.0 - 3.5 (100 g/l, H₂O, 20 °C) |
| Bulk density | 900 kg/m3 |
| Solubility | 139 g/l |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (complexometric) | 99.0 - 100.5 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Insoluble matter | ≤ 0.005 % |
| pH-value (10 %; in water) | 3.0 - 3.5 |
| Chloride (Cl) | ≤ 0.0005 % |
| Heavy metals (as Pb) | ≤ 0.001 % |
| Cd (Cadmium) | ≤ 0.0005 % |
| Cu (Copper) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.0005 % |
| Na (Sodium) | ≤ 0.005 % |
| NH₄ (Ammonium) | ≤ 0.005 % |
| Pb (Lead) | ≤ 0.0005 % |
| Corresponds to ACS,Reag. Ph Eur |
