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The article's safety information doesn't mention the possibility of intense UV. Is that a risk with any of these chemicals? I thought of this because the list
by CoastalCoder 2y ago
The article's safety information doesn't mention the possibility of intense UV. Is that a risk with any of these chemicals?
I thought of this because the list includes magnesium sulfate. IIRC, burning magnesium tape generates enough UV that you should have eye protection.
- perihelions 2y agoI don't think there are any combustion reactions here (besides the source flame), since these are already fully oxidized salts. It's only internal electronic transitions of the metal ions.
- CoastalCoder 2y agoI don't know much about chemistry, so I don't really understand the significance of that. Is the idea that there's no highly energetic reaction, and so nothing to produce the energy levels needed for intense UV?
- mecsred 2y agoNot my area of expertise but I believe the explanation is: the radiation profile is blackbody radiation proportional to the heat of the flame. The metal salts color the flame by absorbing light and re emitting it according to their electron transitions. However the don't add additional energy so there will be no UV light, since the original flame doesn't produce (almost any) photons that energetic. Magnesium burns much hotter and emits uv directly from blackbody profile.
- marcosdumay 2y agoIt's a small fix, but the original flame emits mostly UV light. It's just almost harmless low energy UV. The issue with magnesium burning is that both the UV light is way more energetic, and it tends to also be very intense.
- kragen 2y agono, because the fire is too cold