Ethanol doesn't work.
Tried it a week ago by chance.
Methanol is harder to get and is toxic.
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From: "Scott Bogard" <sdbogard@xxxxxxxxx>
Sent: Monday, August 26, 2013 12:10 AM
I haven't seen the cannon but Boric acid and ethanol/methanol makes
green
flame. As an aside, lithium chloride makes a brilliant red if you
want to
experiment... You can also try simple potassium compounds for purple
but
they are a much less pronounced effect...
Scott Bogard.
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