Neon is also used to make high-voltage indicators and switching gear, lightning arresters, diving equipment and lasers. Liquid neon is an important cryogenic refrigerant. It has over 40 times more refrigerating capacity per unit volume than liquid helium, and more than 3 times that of liquid hydrogen.
Under normal conditions, neon gas is colourless, but it has a bright red-orange glow (discharge) when electricity is applied. Every noble gas has its own characteristic discharge colour.
Under normal conditions, neon gas is colourless, but it has a bright red-orange glow (discharge) when electricity is applied. Every noble gas has its own characteristic discharge colour.
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