7 few quick facts about Argon Gas | WorldOfChemicals

7 few quick facts about Argon Gas

Argon Gas

Argon is the 3rd noble gas, in period 8(p-block) of the Periodic table, it makes up about 1 percent 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 the 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

  1. Argon is an element with symbol Ar and with atomic number as 18.

  2. Argon is colorless, odorless, non-flammable and non-toxic in both gaseous and liquid form.

  3. Argon is inert under the majority of conditions and at room temperature, it forms no stable compounds.

  4. It has an atomic mass of 39.948 g/mol and its density is 1.78.10-3 g/cm3 at 0 degree Celsius.

  5. It has a melting point of -189 degree Celsius and the boiling point as -185.7 degree Celsius.

  6. It has 6 isotopes and its vanderwaals radius is 0.192 nm.

  7. The Thermal Conductivity of Argon is low.

Applications of Argon gas

  1. Scientific Research: Argon in its liquid form is used as a target for neutrino experiments and for direct searching of dark matters. It is used to produce scintillation light.

  2. Industrial Processes: Argon is used to asphyxiate birds in the poultry industry. It is used as inert gas in metal industry for welding and cutting.

  3. Preservative: It is used as a propellant and to displace oxygen and moisture in the air in packaging material so as to extend the shelf life.

  4. Wine Making: It is used in winemaking to be a barrier against oxygen.

  5. Laboratory equipment: Used as an inert gas, it is also used as carrier gas. It is also preferred for sputter coating and sputter deposition.

  6. Medical use: Liquid Argon is used to damage tissues such as cancer cells. It is also used in a procedure called "argon-enhanced coagulation".

  7. 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.

Occurrence of argon gas in Earth’s atmosphere

In Earth’s atmosphere, Argon is the 3rd most abundant gas. In Earth's crust, Argon is the most plentiful noble gas, comprising of 0.00015% of the Earth’s crust.

It makes up around 1% of the Earth's atmosphere by volume and by mass 1.288%.

In Earth's atmosphere, almost all of the argon is radiogenic-argon-40, which is derived from the potassium-40 decay in the Earth's crust and in the universe; argon-36 is the common argon isotope.

Use of Argon gas in light bulbs

Argon gas is used in bulbs, to prevent the oxygen present in bulb from corroding the tungsten filament. Argon is an inert gas and even at higher temperatures, it doesn’t react. By reducing the evaporation of the tungsten element, it also results in increased light bulb life.

Production of Argon gas

It is produced in Industry by air fractionation of liquid air.

Ar-39 in earth’s atmosphere is made using cosmic-ray activity. It is also produced on surface-atmosphere through alpha-emission by calcium or by K-39 neutron capture.

The decay of calcium-40 produces ar-37. Radioactive potassium-40 becomes into as it is decayed. Argon is produced commercially, through distillation of liquid air.

Argon gas effects

Health effects: Argon is absorbed into the body through inhalation which can cause suffocation. Inhalation of this gas also causes dizziness, dullness, headache, nausea, vomiting and even death if inhaled in large proportion.

Environmental effects: By now, by Argon no ecological damage has been caused. This gas in the environment occurs naturally and it also doesn’t constitute any chemicals which can result in ozone depletion. Argon effects on plants or animals are unknown until now and argon does not affect aquatic life too.

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