Aluminum sulphate liquid, commonly referred to as alum, is a chemical compound with the formula Al₂(SO₄)₃. It is a white, crystalline solid that is highly soluble in water and forms a solution with an acidic pH. This compound is primarily used as a coagulating agent in water treatment processes, where it helps to remove impurities and contaminants from water, making it safe for consumption and industrial use.
| Parameter | Specification |
|---|---|
| Al₂O₃ Content | 8% Min |
| Ferro Oxide Fe₂O₃ | 8.0 ppm Max |
| Lead (Pb) | 0.1 ppm Max |
| Arsenic (As) | 0.002 ppb Max |
| pH solution at 25C | 2.06 |
