I just hit on a possible brainstorm for a neat Halloween project. But
I need help from a chemistry expert to pull it off.
What I want is a gas that fluoresces under ultraviolet light. My idea
is to use an ultra violet emitting LED (and battery, of course) and
hide it in the cap of a large jar. Next I want to fill the jar with a
gas so that it fluoreses and the whole thing glows when the LED is on.
I want to call this a GHOST IN THE JAR and place them in various
locations on my porch this halloween. The LED circuit is not a
problem; that I can do. But what gas (non toxic) can I use that glows
under "black light"? I know they sell refrigerants with UV dye so
that you can tell where leaks are at in an air conditioner system. So
I know some gases can be made to glow under UV light. I DO NOT want
to use the refrigerant as you cannot release this into the atmosphere.
Any ideas for a simple reaction that will produce a UV gas that can
be captured into a jar? If it looks real enough, I may consider using
something like a "water cooler" sized jug.