GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Dehydration of copper sulphate, 2 of 3. A test tube with copper sulphate pentahydrate (CuSO4 5H2O) is placed over a Bunsen burner flame. When heated, blue copper sulphate pentahydrate dehydrates (loses water) and turns into pale blue anhydrous copper sulphate (CuSO4). Water is released as a vapour.
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