I am planning on painting a Warhammer 40k army that uses orange plasma for their energy based weapons, and use that exact same orange plasma for my worldbuilding, and other unrelated works of writing. I actually don't know that much about what gives plasma a particular color, I guess it depends of the gases used to form it, but what composition would be a good match for a bright yellowish orange plasma ? Thanks in advance !
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1$\begingroup$ A very quick search yields results about what gases glow what colors. $\endgroup$– TopcodeCommented Mar 9, 2022 at 17:34
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1$\begingroup$ I'm wondering if this question is maybe a better fit for Physics, as the worldbuilding aspect doesn't seem to be of importance to your question. $\endgroup$– JoachimCommented Mar 9, 2022 at 17:35
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$\begingroup$ Well I also wondering on what material should be in important quantity in the region to back up the production of such plasma $\endgroup$– Commissar WilhelmCommented Mar 9, 2022 at 17:38
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$\begingroup$ @CommissarWilhelm well if you used neon, then neon production, if you used helium, then helium production, etc $\endgroup$– TopcodeCommented Mar 9, 2022 at 17:58
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$\begingroup$ @Topcode thanks, I have checked, and I've found two results that are interesting. Sorry for the out of topic post $\endgroup$– Commissar WilhelmCommented Mar 9, 2022 at 18:02
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1 Answer
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from here
Sodium (yellow) and calcium (orange) seems to be the closest fit to your requested color
Every atom has a particular spectral characteristics when it is ionized or heated up. Some molecules are strong enough to survive it as well, but as far as I know atoms dominate.
Metals provide much stronger color than other materials
To look for color and material use 'spectral lines (material)' for search. Only atoms or very simple molecules make sense for this request. If spectral lines are numerous and spread out throughout the spectrum, color will seem more white and less colorful.
Gasses provide significantly weaker color in atmospheric conditions usually. In gas lamps low pressure gas is used - neon, krypton, argon. But so are metal vapors - sodium, mercury. Gas lamps are used for convinience i think, and for particular color they provide.
In normal conditions adding gas like neon to the flame will not make the flame colorful, while metal will.
answered Mar 9, 2022 at 18:15