Flame tests

Flame tests

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Credit: SCIENCE PHOTO LIBRARY

Caption: Three ceramic dishes each containing burning ethanol. Each dish has a different colour flame due to chemicals that have been added to the ethanol. Here they are (left to right): sodium chloride (yellow), potassium chloride (pale lilac) and barium sulphate (pale green). The colour of the flame is different for different elements and can be used to identify unknown substances.

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Keywords: barium sulphate, black background, burning, ceramic dish, characteristic, chemical, chemistry, colors, coloured, colours, combustion, element, elements, ethanol, false-coloured, fire, flame, flame test, flames, green, identification, ions, lab, laboratory, no-one, nobody, potassium chloride, school science, science education, sodium chloride, three, trio, yellow

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