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safe chemicals to color flames?
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Solvay
science forum beginner


Joined: 26 Feb 2006
Posts: 7

PostPosted: Sun Feb 26, 2006 5:46 am    Post subject: Re: safe chemicals to color flames? Reply with quote

tressure@gmail.com wrote:
Quote:
Copper salts of any sort will give some quite nice greens and blues
(even purple in some spots, with copper perchlorate).

Potassium nitrate will give a nice purple, as well.

Other salts (such as those of lithium and strontium) give nice reds,
but would be hard to obtain for the non-professional.

Boric acid dissolved in methanol with a little sulphuric acid

Use care when mixing methanol and sulfuric acid. Even though it would
be produced only with fuming H2SO4, dimethyl sulfate is insidiously
toxic. Battery acid and windshield fluid mix pretty often in the
automotive realm, with no bad effects, but still, maybe muriatic acid
would be safer.

will burn
Quote:
with agreen flame, but isn't sometyhing that can be poured on a
campfire (spoken from long experience- if you have a large quantity of
m/ethyl borate, you pour small quantities of it -beside- the fire, not
directly on it, to get the green flames).

Magnesium ribbon is always fun to toss on a campfire, as well.
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John Savage
science forum addict


Joined: 24 Mar 2005
Posts: 63

PostPosted: Thu Mar 02, 2006 11:20 pm    Post subject: Re: safe chemicals to color flames? Reply with quote

"Nichevo" <nichevo@gmail.com> writes:
Quote:
That is pretty cool. I mixed up some borax with some %90 ethanol, I had
to substitute a couple drops of muriatic acid and it worked! A light
green flame.

I don't know about potassium nitrate though, I would probably have to
get some potash lye or is their an easier way to make it?

The salt-substitute that some people (sufferers of high blood pressure)
use at meals in place of sodium salt is, I think, KCl so you could try
that for your potassium flame.

Borax (it disolves in hot water) should give a very deep orange flame.
--
John Savage (my news address is not valid for email)
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