[shok]

Ok here's the situation.
I fly radio controlled turbine powered jets.
Hooked up to the rear of the motor is a spray nozzle where I mist low viscosity mineral oil.

When the mist meets the exhaust at 650C it turns into a huge white smoke plume.

Now what I would like to do is to turn that smoke to different color.

Is it possible?

Red, blue, black?

Is there a chemical that will vaporize at a selected color?

[xiankai]

as it is the gas that itself is colored, you now have a search keyword

http://www.chemicalforums.com/index.php?topic=7305.0

http://www.chemicalforums.com/index.php?topic=2729.0

http://www.chemicalforums.com/index.php?topic=4262.0

[P-man]

Remember, gases are not computers. You cannot say, "Ok, I would like you to turn purple at 30 degrees."

[Bakegaku]

I'd say your best bet would be to add a chemical that forms a powderous or liquid compound of apparent colour when oxidized rather than trying to get a coloured gas.  All coloured gasses I can think of are pretty nasty things...

[Donaldson Tan]

To achieve different colours upon selection, I think you have to install different mist emitters for the intended colour.

[shok]

ok after doing some searching what about this.

Starting with a base of mineral oil which vaporizes white, what if I add the following:

Solvent Violet 13 for Viloet smoke

Solvent Blue 35 for Blue smoke

Quinoline Yellow SS for Yellow smoke

Sudan Red G  for Red smoke


what are the pros and cons?
Will it even work?

Where can I get these dyes?

[Borek]

Google color smoke fireworks.