the gas filled inside the ultrtavoilet bulb.
2006-08-27 19:05:59 · 8 answers · asked by ? 2 in Science & Mathematics ➔ Engineering
Do you mean in a black light? They are constructed in the same way a flourescent bulb is and utilize an inert gas, usually argon and a small amount of mercury. The only difference is that a black light has a phosphor coating which converts the energy of the UV light waves into visible light.
2006-08-27 19:13:56 · answer #1 · answered by Anonymous · 0⤊ 0⤋
As in, a black light?
Same as with regular flourescent lights; mercury vapor with argon or neon. I would recommend against trying anything with mercury vapor; inhaling it can cause serious health problems.
http://en.wikipedia.org/wiki/Fluorescent_lamp
Mercury vapor on its own in a gas discharge tube also produces very strong ultraviolet light.
2006-08-27 19:12:27 · answer #2 · answered by extton 5 · 0⤊ 0⤋
Argon
2006-08-27 19:09:02 · answer #3 · answered by sundown 1 · 0⤊ 0⤋
Mercury. An ultraviolet lamp is merely a fluorescent lamp, where the tube is a special glass that is opaque to visible light but passes ultraviolet. In a standard fluorescent lamp, the current causes mercury to emit ultraviolet light, which is converted to visible light by the phosphors lining the tube.
2006-08-27 19:13:00 · answer #4 · answered by Anonymous · 0⤊ 1⤋
Argon and halogens are suitable
2006-08-27 19:11:38 · answer #5 · answered by paymanns 2 · 0⤊ 0⤋
Sorry, I don't support terroists!
2006-08-27 19:08:04 · answer #6 · answered by Cherries 5 · 0⤊ 0⤋
its surely hydrogen
2006-08-27 19:11:35 · answer #7 · answered by pooh_the_science_ufo 1 · 0⤊ 1⤋
ethylene,may be
2006-08-27 19:09:25 · answer #8 · answered by peny_smark 1 · 0⤊ 0⤋