IGCSE Chemistry (0620) - flame tests
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All the flame tests for cations that you need to know
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7 Terms
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Lithium ion
red
2
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Sodium ion
yellow
3
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Potassium ion
lilac
4
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Calcium ion
orange red
5
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Barium ion
light green
6
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Copper ion
blue green
7
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How is a flame test conducted?
clean a platinum or nichrome wire - dip in concentrated hydrochloric acid and hold it in a hot bunsen burner flame
moisten the wire - dip it in the acid again
dip it in the salt after so that some salts stick to it
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hold it in the clear part of a blue bunsen flame
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observe colour and conclude test for cations
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moisten the wire - dip it in the acid again
dip it in the salt after so that some salts stick to it
\
hold it in the clear part of a blue bunsen flame
\
observe colour and conclude test for cations
\