Helium (He) Gas

Helium (He) is a colorless, odorless, tasteless, non-toxic, most inert monatomic chemical element that heads the noble gas series in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the elements and it exists only as a gas form except in extreme conditions. Helium is used in cryogenics, for deep-sea breathing systems, to cool superconducting magnets, in Helium dating, for inflating balloons, for providing lift in airships and as a protective gas for many industrial uses (such as arc welding and growing silicon wafers)

Metallurgy :
Arc Welding, Heat Treatment, Leak Detection, Producing Titanium and Zirconium

Electric and Electronic :
Superconductor Cooling, Growing Silicon & Germanium Crystals, Carrier gas in Chemical Vapour Deposition

Medical :
Magnetic Resonance Imaging (MRI), Magnetic Resonance Elastography (MRE), Cryobiology

Research :
Gas Chromatography, Nuclear Magnetic Resonance (NMR), Spectrometry analysis, Thermal conductivity detector

Others :
Nuclear Reactor cooling, Helium Balloon, Supersonic Windtunnel, Pressurized gas for Rocket fuel, Atmospheric diving gas