He-Helium

Product name:Industrial Helium, Helium, High Purity Helium, Ultra pure Helium, He    

Relative molecular mass: 4.003 (calculated according to the 2005 international relative atomic mass)    

Helium is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements, and it does not have a melting point at standard pressures.     

Helium Application

Helium is widely used in military industry, scientific research, petrochemical, refrigeration, medical treatment, semiconductor, pipeline leak detection, superconducting experiment, metal manufacturing, deep-sea diving, high-precision welding, optoelectronic product production, etc.
1.Low-temperature cold source: Liquid helium can be used for ultra-low temperature cooling by using its low boiling point of -268.9℃. Ultra-low temperature cooling technology is widely used in fields such as superconducting technology. Superconducting materials need to be at low temperatures (about 100K) to show superconducting properties. In most cases, only liquid helium can achieve such extremely low temperatures relatively easily. Superconducting technology has a large application in magnetic levitation trains in the transportation industry and nuclear magnetic resonance imaging equipment in the medical field.
2. Balloon inflation: Since the density of helium is much smaller than that of air (the density of air is 1.29kg/m3, and the density of helium is 0.1786kg/m3), and its chemical properties are extremely inactive, it is safer than hydrogen (hydrogen can burn in the air and may cause an explosion). Helium is often used as a filling gas in spacecraft or advertising balloons.
3. Inspection and analysis: The superconducting magnets of nuclear magnetic resonance analyzers commonly used in instrumental analysis need to be cooled by liquid helium. Helium is often used as a carrier gas in gas chromatography analysis. Taking advantage of the good permeability and non-flammability of helium, helium is also used in vacuum leak detection, such as helium mass spectrometer leak detectors.
4. Protective gas: Taking advantage of the inactive chemical properties of helium, helium is often used as a protective gas for welding metals such as magnesium, zirconium, aluminum, and titanium.
5. Other aspects: Helium can be used as a pressurized gas for high vacuum devices, nuclear reactors, rockets, and spacecraft to transport liquid propellants such as liquid hydrogen and liquid oxygen. Helium is also used as a cleaning agent for atomic reactors, in mixed gases for breathing in the field of marine development, and as a filling gas for gas thermometers.    

Helium national standard Index