Chemical Forums
Specialty Chemistry Forums => Materials and Nanochemistry forum => Topic started by: Adammax on March 02, 2012, 02:33:53 PM
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Hello Everyone,
I am trying to find a substance that is in its gas phase between 21 and 37 degrees Celsius (70-100 degrees f) and between 10 and 200psi of pressure, that emits light in the visible spectrum when excited by a ultraviolet light source.
Ideally the gas would also be colorless in the visible spectrum but isn't required.
Basically, I am looking for a gas that would glow under a black light similarly to how some minerals do. Having a gas with these properties would be very useful in a few engineering applications I am currently exploring and I was wondering if anyone knows of any substances that has the properties outlined above or if anyone knows if such a substance can even exist. Its been awhile since I did any photochemistry.
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I suspect this is going to be difficult, if not impossible, to achieve. By definition, molecules of gas a diffuse, a small amount of matter widely separated. You won't have enough material in one place to generate much light.
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http://www.chemicalforums.com/index.php?topic=28843.0
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If no gas is efficient enough at absorbing UV, maybe you could accept a fine powder or mist in the gas?
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If no gas is efficient enough at absorbing UV, maybe you could accept a fine powder or mist in the gas?
Both of those would work provided I could prevent the powder/mist from collecting on the sides of the chamber containing it