Helium gas
It is chemically inert and non-flammable, has high thermal conductivity, low molecular weight and size, and the lowest boiling point known.
Helium has zero valence and is chemically inert, like other noble gases, under normal conditions. When unionized, it also works as an electric insulator.
DSW offers a range of helium products tailored to different applications, including industrial, scientific, medical, and specialty gases.
Customers can often request specific packaging options, such as cylinders, dewars, bulk tanks, or even custom solutions, depending on their requirements.
Specification
| Helium Compressed | |||
| UN NO. | UN 1046 | ||
| Hazard labels | 2.2-Non-flammable gas | ||
| CAS NO. | 7440-59-7 | ||
| Helium is a noble gas that belongs to group 18 of the Periodic table. It occurs as a monoatomic gas and is considered non-toxic for living organisms. It is colourless, odourless, and tasteless. | |||
| PRODUCT NAME | PURITY | ||
| Helium gas | 99.9% | ||
| Helium gas | 99.9999% | ||
Supply Mode – Cylinder
Helium is an inert gas used in shielding and can be mixed with other gases.
Helium is the opposite of Argon in that it is lighter than air.
MIG welding with Helium: the energy in the arc is not very significant compared to Argon, and therefore, the weld bead will be more comprehensive, with poor penetration.
TIG welding with Helium: The opposite is true compared to MIG welding with Helium. TIG welding with helium results in faster travel speed and better weld penetration.
It costs more, so it should only be used on specific projects or for welding metals such as copper, magnesium, or aluminium.
Fill and Refill Equipment
Uses of Helium
- Balloons: One of Helium’s most well-known uses is filling balloons for celebrations and events. The lightness of Helium makes balloons float in the air.
- Welding: Helium is a shielding gas in arc welding processes, such as Tungsten Inert Gas (TIG) welding, to protect the weld area from atmospheric contaminants and prevent oxidation.
- Cooling: Helium, due to its low boiling point, is used in cryogenics to cool superconducting magnets in magnetic resonance imaging (MRI) machines, particle accelerators, and other high-tech applications.
- Gas Chromatography: Helium is a carrier gas in gas chromatography, a technique used in analytical chemistry to separate and analyze compounds.
- Airships and Aircraft: Helium is used as a lifting gas in airships and balloons, providing buoyancy for flight without the risk of combustion associated with hydrogen.
- Leak Detection: Helium is often used as a tracer gas in leak detection applications due to its inertness and small molecular size, making it practical for locating leaks in pipelines, storage tanks, and other systems.
- Breathing Mixtures: Helium-oxygen mixtures, known as heliox, are used in deep-sea diving and medical applications to prevent nitrogen narcosis and decompression sickness.
- Research: Helium is used in various research applications, including cryogenics, nuclear magnetic resonance (NMR) spectroscopy, and cooling superconducting materials.
