What is the reaction of Ethyl 2-cyanoacrylate (superglue) and Alumina powder?

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SUMMARY

The reaction between Ethyl 2-cyanoacrylate (superglue) and alumina powder is highly exothermic, producing significant heat and smoky fumes. Users reported that mixing these substances can lead to rapid solidification, similar to the reaction observed when dry calcium hydroxide is combined with glycerine. It is advised to avoid mixing random chemicals without understanding their interactions, as this can lead to hazardous situations. For optimal results in repairs, utilizing superglue alone is recommended over mixing with baking soda or other powders.

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Qmavam
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After using Superglue and baking soda for repairs, and seeing cement, ashes and other mixes, I wondered what happens with superglue and alumina powder. I mixed the two and it is more exothermic and released smoky fumes, to the point where I quickly moved it outside. I have yet to check my result, but thought it might be good to see what I have. My hope is to make something thermally conductive formed in a molded shape.
 
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Try your repairs using just superglue, and no baking soda. Does it still glue things together?
I honestly cant see why you used sodium bicarbonate, not why you played with aluminium powder.
 
Qmavam said:
released smoky fume
Which is a good reason not to mix together random chemicals.
 
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It's possibly due to some catalytic action, but it's hard to say.
 
was it extremely dry alumina powder? then that was setting the super glue, the same thing happens if u add really dry calcium hydroxide to glycerine, it goes really hot and solidifies.
 
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