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Author: Subject: Exotic Golden Powder compositions
kratomiter
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[*] posted on 30-9-2012 at 04:51
Exotic Golden Powder compositions


Hi everyone!

I'm new in both ScienceMadness and in pyrotechnics.

ATM I only have some fun with LE and I want to make some Golden Powder.
This composition is about 60% KNO3 and 40% Ascorbic Acid, but could work other organics acids? Something like oxalic acid maybe?

I didn't find any info...

Thank you!
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triplepoint
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[*] posted on 30-9-2012 at 05:23


Welcome to sciencemadness. One of the great things about this board is that if encourages posts that provide information to the readers as well as ask for information for the poster. Therefore, I urge you to do some independent research. Then post the results of your research along with your question about how to go further. That way, you will be contributing to the knowledge of those who read your post as well as asking for knowledge for yourself.
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hissingnoise
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[*] posted on 30-9-2012 at 05:57


Some info on GP, here!

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kratomiter
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[*] posted on 30-9-2012 at 11:15


Thanks for the answers!

ATM I've only find some info on KNO + Citric Acid, but it seems to burn quite slowly. I guess that Ascorbic Acid works because it polymerize, right?

I'll try ASAP with oxalic acid.
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hissingnoise
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[*] posted on 30-9-2012 at 11:57


Oxalic acid is a poor fuel when compared to ascorbic acid ─ which you can buy here
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unionised
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[*] posted on 30-9-2012 at 11:59


Am I the only one who read this
"The solid golden cake can be crushed with a motar and pestile safely and easily to a golden powder. "
and thought F***!

(and it wasn't because I worried about the spelling problems).
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hissingnoise
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[*] posted on 30-9-2012 at 12:11


Quote:
"The solid golden cake can be crushed with a motar and pestile safely and easily to a golden powder. "
and thought F***!

Well, a good BP puck can often withstand a few, fairly sharp hammer blows . . .
If friction sensitivity isn't too high GP shouldn't be particularly hazardous, since it won't detonate!

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[*] posted on 30-9-2012 at 12:18


I agree that pulverizing should be fine. potassium nitrate is not known to create impact sensitive compositions, IIRC. KCLO<sub>3</sub> is another case...



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niertap
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[*] posted on 9-10-2012 at 16:32


I think ascorbic acid works so well is because it has not free carboxylic acids and the keto-enol area is quite easy to oxidize.

In theory something that can decompose into carbonmonoxide will mix much more rapidly and have a higher rate of oxidation than a carboxylic acid, which reacts much more awkwardly(mechanistically).




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hissingnoise
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[*] posted on 10-10-2012 at 04:38


Ascorbic acid is somewhat unstable, undergoing a slow redox (even in dry air) which produces water making it appear slightly deliquescent . . .
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