Order number | Packaging | Quantity | Price |
AC27297 | Plastic bottle | 1 kg | 23.17 |
Product information | |
Grade | ACS,Reag. Ph Eur |
Synonyms | Potassium aluminium sulfate, Alum potassium, Potassium alum |
Hill Formula | AlKO8S2 * 12 H2O |
Chemical formula | KAl(SO4)2 * 12 H2O |
HS Code | 2833 30 00 |
EC number | 233-141-3 |
Molar mass | 474.39 g/mol |
CAS number | 7784-24-9 |
Chemical and physical data | |
Solubility | 139 g/l (20 °C) |
Melting point | 92.5 °C |
Molar mass | 474.39 g/mol |
Density | 1.75 g/cm3 (20 °C) |
Bulk density | 900 kg/m3 |
pH value | 3.0 - 3.5 (100 g/l, H2O, 20 °C) |
Safety information | |
RTECS | WS5690000 |
Storage class | 10 - 13 Other liquids and solids |
WGK | WGK 1 slightly water endangering |
Disposal | 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
Safety information | |
Assay (complexometric) | 99.0 - 100.5 % |
Identity | passes test |
Clarity 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 % |
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