Neon is a colorless, odorless, nonflammable inert gas.
Neon comes from the Greek word ‘new’. It occurs in trace amounts making up approximately 0.0018% of the earth’s atmosphere and is obtained commercially by fractionally distilling liquefied air.
Neon is most commonly recognized as the gas used in bright advertising signs, otherwise known as “neon lights”. Its characteristic reddish orange glow can be altered when mixed with other gases, typically argon or helium, or filled into colored glass tubes. Neon is also used to fill glow lamps, fluorescent lamps, and plasma displays. Also because of its physical properties, it is especially useful in lighting systems that are used in cold areas.
Neon is used in several types of gas lasers including ion lasers and excimer lasers. However, its biggest use is in helium-neon lasers, which are used in a variety of commercial applications, such as scanners at supermarket checkout counters to read bar codes on grocery items.
Some miscellaneous neon applications include lightning arresters used to shield electrical equipment from lightning. Neon is also used as a cryogenic refrigerant, as it has over forty times the refrigerating capacity per unit volume as helium.
In the medical field, neon is one of the components in some lung diffusion mixtures, which are used for pulmonary function testing. These mixtures are also used to calibrate analytical instruments that measure the amount of carbon monoxide diffused through the lungs.
- Used as a filling gas in spark chamber particle detectors, Geiger tubes and other detectors, fluorescent lamps, sodium discharge lamps, digital display tubes, stroboscope lights, in signs in mixtures with argon, filament lamps, and telephone line surge arrestors.
- Used as a buffer gas or the active medium in various types of gas lasers such as helium/neon, excimer or copper vapor lasers.
- Used as a carrier gas in chromatography applications.
- Liquid neon is used in the following: liquid hydrogen replacement studies, cryo-sorption and cryo-pumping, nuclear particle detection in bubble chambers, and in lung diffusion gas mixtures.
|Nitrogen||< 2 ppmv|
|Oxygen||< 0.5 ppmv|
|Carbon Monoxide||< 0.5 ppmv|
|Carbon Dioxide||< 0.5 ppmv|
|Moisture||< 1 ppmv|
|Total Hydrocarbons||< 0.5 ppmv|
|Helium||< 5 ppmv|
**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
Product sold on the basis of total impurities. Individual impurities may vary slightly.
|Chemical & Physical Properties|
|Specific Volume||19.21 cu.ft/lb|
|Pressure @ 70 deg||2400 psia|
|Valve Outlet||CGA 580|
|DOT No.||UN 1065|
|DOT Label||Green, non-flammable gas|
|Cylinder Size||Fill Volume (L)|