| Anhydrous |
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An example of anhydration can be seen in copper (II) sulfate. If the Water Of Crystallization is removed from blue crystals of copper (II) sulfate, a white powder (anhydrous copper sulfate) is formed. The original formula for crystalline copper (II) sulfate is CuSO(4) ˑ 5 H(2)O. The formula for anhydration is as follows: heat + CuSO(4) ˑ 5 H(2)O → CuSO(4) + 5 H(2)O Another example is in the heating of magnesium sulfate heptahydrate, MgSO(4)•(7)H2O. On heating, it undergoes the following reaction: MgSO(4)• 7H(2)O + heat -> MgSO(4) + 7H(2)O anhydrous copper sulphate + water → copper sulphate |