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Having trouble lighting magnesium powder


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#1 Tom

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Posted 07 October 2018 - 01:19 PM

Hey, I'm having trouble getting magnesium powder to light up furiously.  Ideally for the project I'm working on I need a solid medium(not liquid) that is highly flammable, that I can ignite with ease- which will then ignite the magnesium. So far I tried putting the magnesium on top of paper towels and lighting it but that fails pretty quickly.

 

Any suggestions?

 

Any other solid substances that also burn hot like magnesium does?  

 

Thanks!

 

 

 

-Tom



#2 NeighborJ

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Posted 07 October 2018 - 05:04 PM

This post is a bit vague to be able to provide assistance. What are you trying to ignite? What mesh size Mg are you using? Does it have an oxidizer mixed in? If the Mg is a fine particle size, could it be old and oxidized?

#3 Tom

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Posted 08 October 2018 - 02:33 PM

I was trying to ignite this MG-- https://www.ebay.com...353.m2749.l2649

 

The MG is fairly new.

 

I don't have an oxidizer/not sure what an oxidizer is.

 

I'm working on a product concept, the basic idea is a safe, were say- a fortune 500 company, large government body ect, may keep important documents(trade secrets/classified info), on paper or in flash drive form(so I need some thing that will melt plastic quickly). The idea is that the safe incinerates these materials when it detects a bad actor trying to steal the information(could be a disgruntle employee, Chinese spy, traitor in the government ect). So all in all it would need something that burns hot and ignites quickly along with not being an explosive.

 

If this idea sounds absurd, it's because I came up with it while writing a science fiction story! And thought to myself it would be cool to see if it could be made haha!

 

So I have no background in pyrotechnics(I work in finance so very unrelated). Although I am taking a welding course in the winter time.

 

 

Any help is appreciated! 

 

Thanks

 

-Tom 



#4 chuckufarley

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Posted 08 October 2018 - 03:36 PM

Sounds like a job for thermite.
If I remember correctly it's,
75% fine, atomized aluminum
25% red iron oxide

It does take alot of heat to get going. I hear magnesium ribbon works well, I always used kmno4 and glycerine to get it started.
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#5 AustralianPyromaniac

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Posted 08 October 2018 - 08:58 PM

Thermite would definitely be a good option especially because the reaction produces little to no gas and thus the safe wouldn't be blown the pieces even if it was fully closed. To ignite the comp some type of ignitor with a hot prime included would work well. Maybe add some silicon. Most people do just use Mg ribbon but in an enclosed space an e-match with Mg and silicon added would probably do it. Look for some e-matches on eBay and find a video about how they work.

 

Regards, AP


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#6 Tom

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Posted 09 October 2018 - 07:53 AM

Thanks for the help!  I would prefer not to use termite since it can burn through metal.  I'll check out the recommendations.

 

Thanks

 

-Tom 



#7 Tom

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Posted 09 October 2018 - 08:19 AM

Thermite would definitely be a good option especially because the reaction produces little to no gas and thus the safe wouldn't be blown the pieces even if it was fully closed. To ignite the comp some type of ignitor with a hot prime included would work well. Maybe add some silicon. Most people do just use Mg ribbon but in an enclosed space an e-match with Mg and silicon added would probably do it. Look for some e-matches on eBay and find a video about how they work.

 

Regards, AP

 

What do you mean by silicon? When I search for it all that comes up is silicon cell phone cases 



#8 spectra1

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Posted 09 October 2018 - 10:09 AM

https://fireworkscoo...owder-200-mesh/

You can also find it on amazon. Just type silicon powder

#9 Mumbles

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Posted 11 October 2018 - 10:14 PM

One thing to remember is that if you have Mg in an enclosed or semi-enclosed space it's going to quickly use up all the oxygen around and put itself out.  For this to ultimately work out, it will likely need some sort of internal oxygen source.  Mg is a strong fuel, and can extract it from a lot of normally unorthodox oxidizers though.  


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#10 NeighborJ

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Posted 12 October 2018 - 04:52 AM

I say you could develop a NC disk as the hard drive. A simple igniter could be used to ignite it and it would burn up without smoke. Poof, government secrets gone.




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