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Near Miss with unusual chemical

Copper nitrate

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#1 Voryon

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Posted 12 February 2018 - 02:23 PM

I wanted to share an accident that happend to me. Luckily I wasnt hurt as I was following basic rules when dealing with new mixtures (PPE, small amount, outside, slow). I ground some copper nitrate trihydrate and mixed it with fine MgAl powder by shaking it together in a container. The total amount of the Mix was about 5g. I then let it sit a few seconds and when I picked it up again, within half a second it burst into bright Flames, I threw it instinctively on the ground and was luckily completely unhurt. I was wearing gloves, safety glasses and long sleeves and jeans. Afterwards I found black staines on the gloves, so I know they prevented me from some burns! Even though I was reading through available MSDS I could not find spontaneous combustion as potential Hazard. I share this experience so that nobody has to make this Experience again!

Stay safe!

V

Edited by Voryon, 12 February 2018 - 02:24 PM.


#2 NeighborJ

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Posted 12 February 2018 - 10:31 PM

Glad you weren't hurt. Pretty much all water soluble copper compounds react exothermicaly with other reactive metals, especially when moisture is involved.
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#3 rogeryermaw

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Posted 13 February 2018 - 10:25 AM

that reactivity is holding back a lot of my experimentation.



#4 Voryon

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Posted 13 February 2018 - 10:46 AM

If this experience keeps someone from being hurt I am very glad that could share it without being hurt! If needed, one can try to repeat it but with the knowledge of what will happend. I am sure this would help against the feeling of lost Experiments, sure this is no Recommendation. Now it seems to be very obvious why this chem is not used in modern pyrotechnics.





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