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ALUM Small KAl (SO₄)₂ x 12H₂O

ALUM   

KAl (SO) x 12H

It crystallize In regular crystal system. Though it easily soluble in water, in nature it forms crystals and  crusts. It can be easily created in lab conditions by hydrothermal method. It is colourless, but it easily gets coloured. When put into direct sunlight it slowly looses water from it’s composition and turns white.

 

It is also used in cosmetics  for bleeding blocking and to accelerate healing