Argon and Krypton - Comparison - Properties

This article contains comparison of key thermal and atomic properties of argon and krypton, two comparable chemical elements from the periodic table. It also contains basic descriptions and applications of both elements. Argon vs Krypton.

argon and krypton - comparison

Compare argon with another element

Compare krypton with another element

Argon and Krypton – About Elements

Argon

Argon is the third-most abundant gas in the Earth’s atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as abundant as neon (18 ppmv). Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning.

Krypton

Krypton is a member of group 18 (noble gases) elements. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps.

Argon in Periodic Table

Krypton in Periodic Table

Source: www.luciteria.com

Argon and Krypton – Applications

Argon

The major applications of argon include the following: electric lamps as filler gas, welding purpose, discharge tubes, argon lasers and argon-dye lasers. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Argon is also used in incandescent, fluorescent lighting, and other gas-discharge tubes.

Krypton

Krypton’s multiple emission lines make ionized krypton gas discharges appear whitish, which in turn makes krypton-based bulbs useful in photography as a white light source. Krypton is used in some photographic flashes for high speed photography. Krypton is also used in MRI/CT techniques.

Argon and Krypton – Comparison in Table

Element	Argon	Krypton
Density	0.00178 g/cm3	0.00375 g/cm3
Ultimate Tensile Strength	N/A	N/A
Yield Strength	N/A	N/A
Young’s Modulus of Elasticity	N/A	N/A
Mohs Scale	N/A	N/A
Brinell Hardness	N/A	N/A
Vickers Hardness	N/A	N/A
Melting Point	-189.2 °C	-157.36 °C
Boiling Point	-185.7 °C	-153.22 °C
Thermal Conductivity	0.01772 W/mK	0.00949 W/mK
Thermal Expansion Coefficient	N/A	N/A
Specific Heat	0.52 J/g K	0.248 J/g K
Heat of Fusion	1.188 kJ/mol	1.638 kJ/mol
Heat of Vaporization	6.447 kJ/mol	9.029 kJ/mol