ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Copper (I) iodide precipitate in a conical flask. Copper sulphate (CuSO4, left) and potassium iodide (KI, right) react to produce potassium sulphate and copper (I) iodide. The copper (I) iodide is a white precipitate whilst the potassium sulphate remains in solution.
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