|
Color
Scheme of Gases in Fluorescent Tubes
|
|
Gas
|
Color
|
Pressure(mm
Hg)
|
Glass
cover
|
|
Neon
|
Deep
red
|
10-18
|
Soft
red
|
|
Neon
|
Red
|
10-18
|
Clear
|
|
Helium
|
Golden
yellow
|
4-5
|
Amber
|
|
Argon,
neon, and mercury
|
Light
green
|
10-20
|
Green
|
|
Argon,
neon, and mercury
|
Dark
green
|
10-20
|
Amber
|
|
Argon,
neon, and mercury
|
Light
blue
|
10-20
|
Clear
|
|
Argon,
neon, and mercury
|
Dark
blue
|
10-20
|
Purple
|
|
Helium
|
White
|
3-4
|
Clear
|
|
|
If
you couldn't tell (and you should), the left is the color scheme
for colors for neon signs, or any other things you want to do
with colored tubes. High voltage indicators, TV tubes, wavemeter
tubes, lightning arrestors, they all use Neon. It found its
way as an important application as an economical cryogenic refrigerant.
It's refrigerating capacity per unit is 40 times more than liquid
helium and requirements. |
