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Comment on the solubility of calcium sul...

Comment on the solubility of calcium sulphate in water.

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Calcium sulphate is sparingly soluble in water. During its dissolution in water, heat is evolved.
Therefore, solubility of calcium sulphate decreases with increases in temperature.
However, calcium sulphate is more soluble in aqueous ammonium sulphate. This is due to the formation of a double salt calcium ammonium sulphate.
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