Why Ferrous sulphate crystal losses color on heating?


The ferrous sulphate (FeSO4.7H2O) consists of 7 molecules of water. During crystal formation, this water molecule is called as water the of crystallization, the color of the crystal is due to this water molecule in crystal form. When we heat the crystal this, water et evaporated out from the crystal structure, thus changing the color of the crystal.


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