metalresearcher
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Test purity homemade KClO3
Currently I am making KClO3 (see www.metallab.net/KClO3.php#exp201101 ) and it seems to go well 
As a purity test I do a flame test which detects even trace amounts of Na by ites yellow flame color. Miy recrystallized KClO3 fortunately does not
show yellow flames, but more magenta / purplish like.
Is this correct ?
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Tiberius_C
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Well if KCl is what you started with, that purplish color argues nicely for K
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