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      Neon
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      Neon
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      Ne
      Neon

      Physical Properties

      Under solid (grey), liquid (blue) and vapor states (white) along the equilibrium curves

      • General properties
      • Solid phase
      • Liquid Phase
      • Gas Phase
      (P)
      log(P)
      Download
      • Molecular weight
        20.179
        g/mol
      • Content in dry air
        18.18
        ppm
         18.18 ppm 1.818E-3 vol% 1.818E-5 vol/vol

      Critical Point

      • Temperature
        - 228.75
        °C
         - 379.75 °F 44.4 K
      • Pressure
        26.53
        bar
         2.653E6 pa 384.785 lbf/in2 26.1831 Atm 2653 Kpa 1.9899E4 mmHg
      • Density
        483.93
        kg/m³
         30.2107 lb/ft³

      Triple Point

      • Temperature
        - 248.59
        °C
         - 415.462 °F 24.56 K
      • Pressure
        4.33E-1
        bar
         4.33E4 pa 6.2801 lbf/in2 4.2734E-1 Atm 43.3 Kpa 324.7776 mmHg
      Pressure 1.013 bar
      • Melting point
        - 248.6
        °C
         - 415.48 °F 24.55 K
      • Latent heat of fusion (at melting point)
        16.259
        kJ/kg
         6.9948 Btu/lb 3.886 kcal/kg
      • Solid density
        /
      Pressure 1.013 bar
      • Liquid density (at boiling point)
        1207
        kg/m³
         75.3504 lb/ft³
      • Boiling point
        - 246.05
        °C
         - 410.89 °F 27.1 K
      • Latent heat of vaporization (at boiling point)
        85.757
        kJ/kg
         36.8936 Btu/lb 20.4964 kcal/kg
      Pressure1.013barTemperature
      • Compressibility factor Z
        1.0005
        1.0005
        1.0005
      • Cp/Cv ratio γ
        1.6669
        1.6669
        1.6669
      • Dynamic viscosity
        2.9382E-4
        Po
         29.382 µPa.s 2.9382E-5 PA.S 1.9744E-5 lb/ft/s
        3.0427E-4
        Po
         30.427 µPa.s 3.0427E-5 PA.S 2.0446E-5 lb/ft/s
        3.1113E-4
        Po
         31.113 µPa.s 3.1113E-5 PA.S 2.0907E-5 lb/ft/s
      • Gas density at boiling point
        9.575
        kg/m³
         5.9775E-1 lb/ft³
        9.575
        kg/m³
         5.9775E-1 lb/ft³
        9.575
        kg/m³
         5.9775E-1 lb/ft³
      • Gas density
        8.996E-1
        kg/m³
         5.616E-2 lb/ft³
        8.528E-1
        kg/m³
         5.3238E-2 lb/ft³
        8.242E-1
        kg/m³
         5.1453E-2 lb/ft³
      • Heat capacity at constant pressure Cp
        1.0304
        kJ/(kg.K)
         2.4627E-1 BTU/lb∙°F 1030.377 J/kg∙K 2.4627E-1 kcal/kg∙K
        1.0303
        kJ/(kg.K)
         2.4625E-1 BTU/lb∙°F 1030.327 J/kg∙K 2.4625E-1 kcal/kg∙K
        1.0303
        kJ/(kg.K)
         2.4625E-1 BTU/lb∙°F 1030.327 J/kg∙K 2.4625E-1 kcal/kg∙K
      • Heat capacity at constant volume Cv
        6.1814E-1
        kJ/(kg.K)
         1.4774E-1 BTU/lb∙°F 618.137 J/kg∙K 1.4774E-1 kcal/kg∙K
        6.1814E-1
        kJ/(kg.K)
         1.4774E-1 BTU/lb∙°F 618.137 J/kg∙K 1.4774E-1 kcal/kg∙K
        6.1809E-1
        kJ/(kg.K)
         1.4773E-1 BTU/lb∙°F 618.087 J/kg∙K 1.4773E-1 kcal/kg∙K
      • Liquid (at boiling point)/gas equivalent
        1338.2
        mol/mol
        1415.3
        mol/mol
        1464.4
        mol/mol
      • Solubility in water
        /
        8.702E-6
        mol/mol
        8.152E-6
        mol/mol
      • Specific gravity
        0.7
        0.7
        0.7
      • Specific volume
        1.1116
        m³/kg
         17.8061 ft³/lb
        1.1726
        m³/kg
         18.7832 ft³/lb
        1.2133
        m³/kg
         19.4352 ft³/lb
      • Thermal conductivity
        45.412
        mW/m∙K
         2.6256E-2 Btu/ft/h/°F 3.9073E-1 cal/hour∙cm∙°C 1.0854E-4 cal/s∙cm∙°C 4.5412E-2 W/(m∙K)
        47.026
        mW/m∙K
         2.7189E-2 Btu/ft/h/°F 4.0462E-1 cal/hour∙cm∙°C 1.1239E-4 cal/s∙cm∙°C 4.7026E-2 W/(m∙K)
        48.084
        mW/m∙K
         2.7801E-2 Btu/ft/h/°F 4.1373E-1 cal/hour∙cm∙°C 1.1492E-4 cal/s∙cm∙°C 4.8084E-2 W/(m∙K)
      • Vapor pressure
        /
        /
        /
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      Ne
      Neon

      Liquid / Gas Volumes

      Calculate a liquid or gas volume or a mass

      Liquid Phase

      At boiling point at 1.013 bar

      m3(Volume)
      kg(Mass)

      Gas Phase

      at 1.013 bar and boiling point

      m3(Volume)
      kg(Mass)
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      Ne
      Neon

      Applications

      Examples of uses of this molecule in Industry and Healthcare

      Laboratories & Research Centers

      Neon is used in research on ionised particles. It is used to cool ultra-sensitive infrared detectors. Neon is also used to detect ionizated particles in bubble chambers.

      Laboratories & Research Centers

      Photonics

      Neon is used to produce “neon” advertising signs (mixed with argon). It is used to fill arc, fluorescent, sodium vapour and strobe lamps, or X-ray tubes such as thyratrons (mixed with argon). Neon is also used in helium-neon lasers and as buffer gas in metallic vapour lasers.

      Photonics

      Electronic components

      Neon produces wavelengths varying as a function of operating conditions for halogens in "excimer" lasers.

      Electronic components
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      Ne
      Neon

      Safety & Compatibility

      Information to safely use this molecule

      • Major hazards
      • Material compatibility
      Safety
      • GHS04
        Gas under pressure

      Odor

      none

      Metals

      • Aluminium
        Satisfactory
      • Brass
        Satisfactory
      • Monel
        Satisfactory
      • Copper
        Satisfactory
      • Ferritic Steel
        Satisfactory
      • Stainless steel
        Satisfactory
      • Zinc
        Satisfactory
      • Titanium
        No data

      Plastics

      • Polytetrafluoroethylene
        Satisfactory
      • Polychlorotrifluoroethylene
        Satisfactory
      • Polyvinylidene fluoride
        Satisfactory
      • Polyvinyl chloride
        Satisfactory
      • Ethylene tetrafluoroethylene
        Satisfactory
      • Polycarbonate
        Satisfactory
      • Polyamide
        Satisfactory
      • Polypropylene
        Satisfactory

      Elastomers

      • Buthyl (isobutene- isoprene) rubber
        Satisfactory
      • Nitrile rubber NBR
        Satisfactory
      • Chloroprene
        Satisfactory
      • Silicone
        Satisfactory
      • Perfluoroelastomers
        Satisfactory
      • Fluoroelastomers
        Satisfactory
      • Neoprene
        Satisfactory
      • Polyurethane
        Satisfactory
      • Ethylene-Propylene
        Satisfactory

      Lubricants

      • Hydrocarbon based lubricant
        Satisfactory
      • Fluorocarbon based lubricant
        Satisfactory

      Materials compatibility

      Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content; Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application. Contact the regional Air Liquide team for expertise service.

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      Ne
      Neon

      Learn More

      General information

      More information

      Neon was discovered in 1898 by Sir William Ramsay and Moris William Travers. The name comes from the Greek "νέον" (neon) meaning "new one". Neon, krypton and xenon are known as "rare" gases, since combined they only account for one thousandth of the air which surrounds us. These gases are colorless and tasteless. They are so inert that they do not react and can only be combined with other chemical substances with great difficulty. Their extreme inertness makes them very valuable for certain applications.

      Ne

      Neon