Aluminium Potassium Sulphate (98%) is a colorless to white crystalline solid with a molecular weight of ~474.39 g/mol. It decomposes on heating (no fixed boiling point) and has a melting point around 92–93°C (with decomposition). Form: Solid / Crystals; Uses: water purification, textile dyeing, paper manufacturing, leather processing, and laboratory applications. Available Quantities: 500 g, 5 kg, 25 kg (custom bulk packing available)