Copper flame test

Copper flame test

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Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Copper flame test. Positive result of a flame test for copper (Cu), producing a green colour. This is due to the excitation of electrons in the copper by the heat of the flame. As these electrons lose their energy, they emit photons of green light. This light green colour is characteristic of the copper halides.

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Keywords: analysis, analytical, apparatus, bunsen burner, characteristic, colour, combustion, copper, experiment, experimental, flame, green, halide, halides, ion, metal, physical, reaction, sample, test, testing, wire

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