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Posted

Hey

 

I just tried making coloured smoke.

 

This comp:

 

Potassium chlorate................................15

para-nitroaniline red.............................65

Lactose...........................................20

 

Only I did replace the pna red with Fluorescein. The comp worked but I needed to relight it 4 times. I rammed it in a tube.

 

I gave of nice yellow smoke.

 

But the comp is right I know it is. But how do I construct the device so it will work better?

 

I guess a device similar to a core burner rocket would work good. But I do want oppinions and experience posted here first please.

 

Thank you

Posted

Would that be Sodium Fluorescein? I have a jar of the stuff sitting around not being used... Never thought of using it in a smoke comp.

 

To make it a little more efficient, press it into a tube (I don't think this comp should be rammed), leave 1" or so of airspace above the comp, then glue an end disc with a large hole in the centre (baffle) to make sure the smoke doesn't ignite outside the tube. Presumably a cored version would give a faster burn and so thicker smoke, but I've never done it myself... can't see any reason not to though.

Posted

I Think I have plain Fluorescein (the acid). But Sodium salt could work too I guess.

 

I just tried because it is the only organic dye I have.

 

But it burned really crappy. I think it needs to be pressurized to work well.

 

I am going to try somethink like this :

 

http://fas.org/man/dod-101/sys/land/g-Fig1-13.gif

Posted

I made some coloured mokes a while back.

But I only made real small quantities because chems for these are real expensive.

 

This here was one of my nicest.

 

Blue smoke:

potassiumchlorate-----28

flour--------------------15

Methyleneblue---------17

Indigo------------------40

 

Attached the vid.

Gr33tZ

Bluesmoke.rar

Posted
Nope, it is your formula. You can't replace one dye with another and expect to get the same results. Try decreasing the dye amount by 10 or parts and try again. It sounds like there is too much dye in there and it's killing the reaction.
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