min. 99.9%, Aluminium Ammonium Sulfate – Dodecahydrate, ultra pure, Ammonium Alum, CAS No.: 7784-26-1
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Available, delivery time: 2-5 days
Product information "min. 99.9%, Aluminium Ammonium Sulfate – Dodecahydrate, ultra pure, Ammonium Alum, CAS No.: 7784-26-1"
Ammonium alum, also known as Ammonium aluminium sulfate or Ammonium Alum, is a colorless to white, crystalline double salt that dissolves excellently in water. It has a wide range of applications in industry, pharmaceuticals, cosmetics, and analytics. Our quality meets the highest purity standards and complies with international regulations.
Properties and Benefits
- Purity: ≥ 99.0% on dried substance
- High water solubility: 150 g/l at 20 °C
- pH-regulating properties – ideal for laboratory and cosmetics
- Thermally stable above 280 °C
Applications of Ammonium Alum
Thanks to its versatile chemical properties, ammonium alum is used in the following areas:
- Food industry – as an additive according to EU Regulation 231/2012
- Water treatment – for flocculation of suspended solids
- Cosmetics – in deodorants and alum blocks
- Pharmaceutical industry – as an excipient
- Analytics & Laboratory – as a reagent
Delivery Form and Packaging
Available in sealed packaging units. Custom packaging on request.
Buy Ammonium Alum Now
Order high-quality Ammonium Alum directly from us – with fast delivery, premium quality, and expert support. Ideal for laboratories, industry, and professional applications. If you have questions regarding certificates of analysis or batch data, we are happy to help.
| Physical Data | |
|---|---|
| Form | Small crystals |
| Color | White |
| Solubility in water | 150 g/l at 20 °C |
| Thermal decomposition | Above 280 °C |
| Density (D) | 1.64 g/cm³ |
| Melting point | 93 °C |
| Boiling point | 200 °C |
| pH value (100 g/l) | 2.6 |
| Specification | |
|---|---|
| Content (based on dried substance) | 99.0 – 100.5% |
| Identity according to pharmacopoeias | Complies |
| pH value of a 5% solution | ≥ 3.0 |
| Insoluble matter in water | max. 0.02% |
| Loss on drying at 300 °C | 45.0 – 48.0% |
| Chloride (Cl) | max. 0.005% |
| Phosphate (PO₄) | max. 0.005% |
| Residual solvents (Ph. Eur., USP) | Complies |
| Alkali and alkaline earth salts | max. 0.5% |
| Iron (Fe) | max. 0.002% |
| Elemental Impurities (according to ICH Q3D) | |
|---|---|
| Class 1 | |
| Cd, Pb | each max. 0.5 ppm |
| As, Hg | each max. 1.5 ppm |
| Class 2A | |
| Co | max. 5 ppm |
| V | max. 10 ppm |
| Ni | max. 20 ppm |
| Class 2B | |
| Tl, Au, Pd, Ir, Os, Rh, Ru | each max. 10 ppm |
| Se | max. 15 ppm |
| Ag, Pt | each max. 15 / 10 ppm |
| Class 3 | |
| Li | max. 55 ppm |
| Sb | max. 120 ppm |
| Ba | max. 140 ppm |
| Mo | max. 25 ppm |
| Cu | max. 250 ppm |
| Sn | max. 600 ppm |
| Cr | max. 25 ppm |
| Safety / Hazards | |
|---|---|
| Hazard data | No data available |
| OEL (Aluminum) | 2 mg/m³ |
| Also known as: | Salmiakalaun, Ammoniumalaun, Ammoniumaluminiumsulfat - Dodecahydrat, Ammonalaun, Ammoniakalaun, Diammoniumaluminiumdisulfat, Aluminium ammonium sulfate dodecahydrate, H4AlNO8S2 .12H2O NH4Al(SO4)2 .12H2O |
|---|---|
| CAS-Nr.: | 7784-26-1 |
| Produktcharakter: | Kristallin |
| Schmelzpunkt: | 93°C |
| Stoffgruppe: | Sulfate |
| kind of product: | chemical |
| material: | Aluminiumammoniumsulfat - 12 Hydrat |
| purity: | min. 99,9 % |
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