Factory Prcie Research And Industrial Applications Cylinder Gas Helium High Purity He

Product Description

Helium gas, symbolized as He, is an element found in the periodic table with atomic number 2. It is the second lightest and second most abundant element in the universe. Helium is a noble gas belonging to Group 18. Here are some key points about helium gas:

1. Chemical Symbol: He
2. Atomic Number: 2
3. Atomic Weight: 4.0026 g/mol
4. Physical Properties: Helium is a colorless, odorless, and tasteless gas at standard conditions. It is the second lightest gas, after hydrogen, and has a density of approximately 0.1785 grams per liter at 0 degrees Celsius and 1 atmosphere of pressure. Helium has a boiling point of -268.93 degrees Celsius (-452.07 degrees Fahrenheit) and a melting point of -272.2 degrees Celsius (-457.96 degrees Fahrenheit).
5. Abundance and Occurrence: Helium is the second most abundant element in the universe, primarily formed through nuclear fusion in stars. However, it is relatively rare on Earth. It is obtained as a byproduct during the extraction of natural gas, where certain gas fields have higher concentrations of helium.
6. Applications: Helium gas has various applications in different fields. Its most well-known use is in filling balloons and airships due to its low density, making them float. Helium is also used in cryogenics, as it can reach extremely low temperatures when liquefied, making it suitable for cooling superconducting magnets in MRI machines, particle accelerators, and other scientific equipment. Additionally, helium is used as a shielding gas in welding processes, in breathing mixtures for deep-sea diving, in certain types of lasers, and in various research and industrial applications.
7. Liquid Helium: Helium can be liquefied at extremely low temperatures, below its boiling point. Liquid helium has unique properties, such as superfluidity and superconductivity, which make it valuable for scientific research and applications in low-temperature physics.
8. Safety Considerations: Helium gas is generally considered to be safe and non-toxic. It is not flammable and does not support combustion. However, as with any compressed gas, proper handling, storage, and ventilation should be ensured to prevent accidents.
9. Helium Shortage: There have been concerns about the global helium supply in recent years due to its limited availability and increasing demand. Helium is a non-renewable resource, and its extraction and conservation are important to ensure its sustainable use in various applications.