K2SO4.Al2(SO4)3.24H2O is a chemical compound known as potassium aluminum sulfate dodecahydrate or simply alum. It is an inorganic salt with the formula KAl(SO4)2•12H2O.
The compound consists of potassium ions (K+), aluminum ions (Al3+), sulfate ions (SO42-), and water molecules (H2O). The ratio of the ions and water molecules in the compound is as follows:
- Two potassium ions: K2
- One aluminum ion: Al
- Three sulfate ions: (SO4)3
- Twenty-four water molecules: 24H2O
Alum is commonly used in various applications such as water treatment, dyeing, and as an ingredient in certain baking powders.