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Color mix


Niladmirari

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My research color mix. Compositions for stars.
Base red:

NH4ClO4 - 60%
Sr(NO3)2 - 15%
hexamethylenetetramine - 20%
resin - 5%

 

Red

 

Base green:

NH4ClO4 - 60%
Ba(NO3)2 - 15%
hexamethylenetetramine - 20%
resin - 5%

 

green

Base blue:

NH4ClO4 - 60%
CuCl - 15%
hexamethylenetetramine - 20%
resin - 5%

 

blue

Base yellow:

NH4ClO4 - 70%
Na2C2O4 - 10%
hexamethylenetetramine - 15%
resin - 5%

 

yellow

Violet:

12% red + 88% blue

 

violet

Purple:

25% red + 75% blue

 

purple

Magenta:

50% red + 50% blue

 

magenta

Turquoise:

12% green + 88% blue

 

turquoise

Aqua:

20% green + 80% blue

 

aqua

White blue:

25% green + 75% blue

 

white blue

Orange:

12% yellow + 88% red

 

orange

Yellow green:

12% yellow + 88% green

 

yellow green

Edited by Niladmirari
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Nice colors Niladmirari.

The blue looks pretty good on the ground.

What would you use as a prime for these stars?

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What would you use as a prime for these stars?

Prime:

KClO4 - 70%

C - 25%

resin - 5% (ethanol)

 

Or:

KClO4 - 70%

C - 25%

resin - 5%

nitrocellulose - 5% over 100% (acetone)

 

resin it:

 

http://savepic.net/4696991m.gif

 

 

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Nice compositions.

The look similar to some of engagers formula's listed somewhere here

 

What kind of CuCl do you use? the "green stuff"? or the pure white version?

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well done Niladmirari...!!

Keep it up..:-):-)

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What kind of CuCl do you use? the "green stuff"? or the pure white version?

Green :)

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Do you have the same reaction happening with hexamine and (green) CuCl?
I wonder what it might be, very anoying collor changing of the mixture when wetted with any solvent

Edited by burningRNX
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I don't know why you think it's odd or annoying that you get a color change when mixing transition metals and coordinating compounds. Copper (II) chloride, a component of green "copper (I) chloride", is known to form complexes with hexamine. It looks like it makes a brown compound in the neutral state. Different species form from acidic or basic solution. From what I can tell, copper (I) chloride can interact with it as well, but I haven't been able to find any colors or properties of that.

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Hexamethylenetetramine - very bad complexing agent. Compare it with a similar protonation constant in ammonia, the difference of the order of 4.

I used CuCl. In reality it: 3Cu (OH)2*CuCl*H2O or CuCl + Cu2OCl2:

 

http://savepic.net/4696611m.png

 

http://savepic.net/4678179m.jpg

Edited by Niladmirari
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I'd love to hear your explanation for how the pKa relates to binding strength to a metal. I've even included the relevant pKa's for you.

 

Ammonia: 9.3

Hexamine: 6.2

 

 

While we're on the subject of your bullshit science, I think you're trying to write the formula 3Cu(OH)2*CuCl2*H2O, which is the formula for copper oxychloride. That horrific excuse for a drawing you posted has absolutely nothing in common with the formula you posted, nor the actual structure of copper oxychloride. Additionally, it's entirely Copper (II). You may want to notice that the page below for the industrial sale of copper oxychloride has the exact same picture that you purport for your copper (I) species.

 

http://vimalcropcare.tradeindia.com/copper-oxychlorides-technical-88--283817.html

 

 

http://vimalcropcare.tradeindia.com/copper-oxychlorides-technical-88--283817.html

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I apparently incorrectly translated your text.

9.3 - 6.2 = 3,1

According to my information 10 - 6 = 4 (difference of the order of 4).

 

White copper chloride (1) when stored in air turns green. He used. You can use copper oxychlorid instead of him.

Edited by Niladmirari
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Most importantly - when mixed hexamine and copper chloride I have not seen the reaction.

Edited by Niladmirari
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I apparently incorrectly translated your text.

9.3 - 6.2 = 3,1

According to my information 10 - 6 = 4 (difference of the order of 4).

 

White copper chloride (1) when stored in air turns green. He used. You can use copper oxychlorid instead of him.

 

 

That still offers absolutely no explanation as to how pKa relates to bond strength to metals. I wasn't arguing that ammonia is more basic than hexamine.

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Most importantly - when mixed hexamine and copper chloride I have not seen the reaction.

Whitch would be? pure (white) CuCl in the dry state mixed with hexamine? or wetted?
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Whitch would be? pure (white) CuCl in the dry state mixed with hexamine? or wetted?

I bought copper chloride. He looked like this:

http://en.wikipedia.org/wiki/File:Copper(I)_chloride.jpg (green)

 

Components are mixed in dry form. Stars do in acetone or ethanol.

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I think admixture of formaldehyde can recover copper.

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  • 2 months later...

I have always wondered why these formulae are not more popular.
I have been a fan of these for many years. I think most people don't like to use Ammonium Perchlorate. These formulae are however very populae in lance.
Another one I like is
Ammonium Perchlorate 80
Copper Benzoate 17
Dextrine 4

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I would think that the lack of availability of copper benzoate is largely responsible. Ammonium perchlorate has it's own set of issues, but a lot of people are not willing to synthesize their own chemicals. It's becoming more available, but it's still expensive enough to not be extremely popular compared to other commercially available colorants.

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I have been considering make a small batch of copper benzoate to experiment with its use a fuel in whistle compositions. I have opted not use ammonium perchlorate since I do use potassium chlorate for a few things, so a few AP compositions are out.

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  • 2 years later...

Bit of a thread necro but I felt this needed to be added:

 

I was able to find the resin he mentioned: http://encyclopedia2.thefreedictionary.com/Phenolic+Resin

 

That page is an entry from The Great Soviet Encyclopedia (1979). It contains the exact image OP posted for his resin. It appears to be a novolac resin. Wikipedia says the following:

 

 

Hexamethylenetetramine or "hexamine" is a hardener added to crosslink novolac. At a temperature >90 °C, it forms methylene and dimethylene amino bridges. -https://en.wikipedia.org/wiki/Phenol_formaldehyde_resin#Novolacs

 

Here all of the formulas given directly:

 

(AP = Ammonium Perchlorate; KP = Potassium Perchlorate; NC = Nitrocellulose; SrN = Strontrium Nitrate; BaN = Barium Nitrate; Hex = Hexamine; Phenol = Novolac/Phenolic formaldehyde resin; CuCl = Copper (I) chloride; NaOx = Sodium Oxalate)

 

Base Red
60 AP
15 SrN
20 Hex
5 Phenol

Base Green
60 AP
15 BaN
20 Hex
5 Phenol

Base Blue
60 AP
15 CuCl
20 Hex
5 Phenol

Base Yellow
70 AP
10 NaOx
15 Hex
5 Phenol

Violet (12 Red : 88 Blue)
60 AP
20 Hex
13.2 CuCl
5 Phenol
1.8 SrN

Purple (25 Red : 75 Blue)
60 Ap
20 Hex
11.25 CuCl
5 Phenol
3.75 SrN

Magenta (50 Red : 50 Blue)
60 AP
20 Hex
7.5 CuCl
7.5 SrN

Turquoise (12 Green : 88 Blue)
60 AP
20 Hex
13.2 CuCl
5 Phenol
1.8 SrN

Aqua (20 Green : 80 Blue)
60 AP
20 Hex
12 CuCl
5 Phenol
3 BaN

White-Blue (25 Green : 75 Blue)
60 AP
20 Hex
11.25 CuCl
5 Phenol
3.75 BaN

Orange (12 Yellow : 88 Red)
61.2 AP
19.4 Hex
13.2 SrN
5 Phenol
1.2 NaOx

Yellow Green (12 Yellow : 88 Green)
61.2 AP
19.4 Hex
13.2 BaN
5 Phenol
1.2 NaOx

 

Prime

70 KP

25 AFC

5 Phenol

5 NC (Optional)

Bind with alcohol

Edited by AzoMittle
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  • 5 weeks later...

Phenolic resin has been used for quite some time especially by the Chinese and some other countries. It's only fairly recently becoming popular in the US.

 

It can be found but James Widmann of WASP fame that owns CTpyro for selling his machines has imported a lot from China and has been selling it for a few years. It also works with hexamine to cure the resin where it can be used in large comets that cure/dry/harden quickly as opposed to having to wait for a solvent to evaporate.

 

Anyways, just a bit more info on phenolic resin.

 

Edit: more info

Edited by FlaMtnBkr
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