Using Ammonia To Test For The Presence Of Basic Copper Chloride In Solution

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The formation of aqueous Basic Copper Chloride(WSDTY) solutions and precipitation of copper was carried out. Once the reaction solution appeared colorless, three or four drops of the solution were placed in a small test tube. A 1-mL aliquot of 6 M ammonia was then added to and mixed with the solution in the test tube. In instances where a royal blue color was observed in the test solution the copper precipitation reaction was allowed to continue with additional magnesium, as required. Once the test solutions no longer revealed a royal blue color, the precipitation reaction was halted. Excess magnesium was then dissolved and the elemental copper was collected, purified.

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