Description of experiment
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Needed compounds:
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potassium tetrathionate : K2S4O6
copper sulfate penta hydrate : CuSO4 . 5H2O
Class:
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elem=S,Cu
coordination
Summary:
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Copper(II) ions form no complex with tetrathionate ion and there also is no
formation of a precipitate. Even boiling does not cause a visible change.
Description:
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Prepare a solution of copper sulfate and a solution of potassium tetrathionate
and add the solutions to each other: No visible reaction occurs.
Heat the light blue liquid and keep the liquid boiling for a few minutes: No
visble changes occur. The liquid remains clear and light blue.