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Wednesday 26 July 2017

7 few quick facts about Argon Gas


Argon is the 3rd noble gas, in period 8(p-block) of Periodic table, it makes up about 1 per cent of the Earth's atmosphere.
The solubility of Argon is approximately the same solubility as oxygen has. It is 2.5 times as soluble as nitrogen in water. The name "argon" is derived from the Greek word ?ργ?ν, meaning "lazy" or "inactive".
History of argon gas
In 1785, Argon was suspected to be the component of air by Henry Cavendish.
But in 1894, Argon was first isolated from air at London University College, by William Ramsay and Rayleigh by detaching carbon dioxide, oxygen water and nitrogen from a sample of air.
Properties of argon gas
  • Argon is an element with symbol Ar and with atomic number as 18.
  • Argon is colourless, odourless, non-flammable and non-toxic in both gaseous and liquid form.
  • Argon is inert under majority of conditions and at room temperature it forms no stable compounds.
  • It has an atomic mass of 39.948 g/mol and its density is 1.78.10-3 g/cm3 at 0 degree Celsius.
  • It has melting point of -189 degree Celsius and boiling point as -185.7 degree Celsius.
  • It has 6 isotopes and its vanderwaals radius is 0.192 nm.
  • The Thermal Conductivity of Argon is low.
Applications of Argon gas:
    • Scientific Research: Argon in its liquid form is used as target for neutrino experiments and for direct searching of dark matters. It is used to produce scintillation light.
    • Industrial Processes: Argon is used to asphyxiate birds in poultry industry. It is used as inert gas in metal industry for welding and cutting.
    • Preservative: It is used as a propellant and to displace oxygen and moisture in air in packaging material so as to extend the shelf life.
    • Wine Making: It is used in winemaking to be a barrier against oxygen.
    • Laboratory equipment: Used as an inert gas, it is also used as carrier gas. It is also preferred for sputter coating and sputter deposition.
    • Medical use: Liquid Argon is used to damage tissues such as cancer cells. It is also used in a procedure called "argon-enhanced coagulation".
    • Lighting: It is used in lighting, as it doesn’t react with light bulb filament. In blue and green argon-ion lasers also Argon is used.

    Read more. 7 few quick facts about Argon Gas

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