Potassium alum in Pakistan
Formula KAl(SO₄)₂·12H₂O
Molar mass 474.39 g/mol
Solubility in water 6.01 g/100 g (20°C); 109 g/100 g (90 °C)
Density 1.76 g/cm³
Boiling point 200 °C
Description
Potassium alum, potash alum, or potassium aluminium sulfate is a chemical compound defined as the double sulfate of potassium and aluminium, with chemical formula KAl(SO₄)₂. It is commonly encountered as the dodecahydrate, KAl(SO₄)₂·12H₂O.
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