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What is Helium? | Helium gas
Sepehr Gas Kavian: +982146835980, +982146837072 and +989022734708
Helium is a chemical element with the symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all elements, and it does not have a melting point at standard pressures
Properties of helium
Here are some of the key properties of He:
- Second-lightest element (after hydrogen)
- Second most abundant element in the observable universe
- Colorless, odorless, and tasteless gas
- Inert (does not react with other elements)
- Lowest boiling point of any element
- Does not have a melting point at standard pressures
He sources
There are two main sources of He on Earth:
- Natural gas: Helium is trapped with natural gas in underground deposits. These deposits are formed when organic matter decomposes over millions of years. The He is a byproduct of the radioactive decay of elements like uranium and thorium that are also found in these deposits. The natural gas is processed to remove the He, which can then be used for a variety of purposes. The United States has some of the largest helium reserves in the world, located in Texas, Oklahoma, and Kansas.
- Radioactive decay: He is also produced by the radioactive decay of certain elements, such as uranium and thorium. These elements emit alpha particles, which are essentially He nuclei. This process is very slow, but it has been happening for billions of years, so there is a significant amount of helium trapped in rocks and minerals. However, it is not currently economical to extract He from these sources.
Types of He
Helium gas itself isn’t categorized into different types, but there are different grades of He based on its purity. These grades are designated by a number, with higher numbers indicating higher purity.
Here are some common grades of helium:
- Grade 4 (99.99% pure): This is the most common grade of helium and is often referred to as “balloon grade helium” because it’s sufficient for filling balloons. It also has various industrial uses, such as leak detection and inerting applications.
- Grade 5 (99.999% pure): This grade of He is used in some specialized industrial applications, such as welding and purging.
- Grade 6 (99.9999% pure): This is the highest purity grade of He and is used in critical applications such as semiconductor manufacturing and scientific research.
He uses
Helium has a wide variety of uses, including:
- Medical Applications: Liquid He is used as a coolant for MRI machines, which are essential for medical diagnosis. He-Ne lasers are used in various medical procedures, including eye surgery.
- Scientific Research: Helium’s low boiling point makes it ideal for cryogenics, the study of extremely low temperatures. This allows scientists to study the behavior of materials at near absolute zero. He is also used in particle accelerators, which are used to study the fundamental particles of matter.
- National Defense: He is used in various national defense applications, including missile guidance systems, rocket testing, and high-altitude balloons for surveillance.
- High-Tech Manufacturing: He is used in the production of computer chips and other electronic devices. It creates an inert atmosphere to prevent oxidation during manufacturing and also helps create higher-density hard drives.
- Leak Detection: Helium’s small atomic size allows it to easily pass through tiny openings. This property makes it a valuable tool for detecting leaks in pipes, welds, and other pressurized systems.
- Cooling agent: Liquid He is used to cool superconductors, which are materials that can conduct electricity with no resistance. This is essential for a variety of technologies, including MRI machines, particle accelerators, and maglev trains.
- Lifting gas: This gas is lighter than air, making it a popular lifting gas for balloons and airships. However, due to the finite supply of helium, its use in balloons is becoming less common.
- Other Uses: He is also used in scuba diving mixtures to reduce the risk of decompression sickness, and in blimps and airships lighter-than-air vehicles due to its low density.
Ways of purchasing helium
There are two main ways to buy helium, depending on how much you need:
- Small quantities for balloons: You can buy disposable He tanks filled with enough He to inflate a bunch of balloons at party supply stores or online retailers like Amazon. These tanks are typically pre-filled and cannot be refilled.
- Larger quantities: If you need more He, you can buy refillable tanks. These tanks come in various sizes and require a deposit. Helium can be expensive in bulk, and suppliers may require some safety training before selling it to you.
Here are some things to keep in mind when buying helium:
- Helium availability: There has been a global He shortage in recent years, so availability may be limited in some areas.
- Safety: Helium is an inert gas, but it can be dangerous if inhaled in large quantities. Be sure to read and follow the safety instructions on the helium tank.
Supply
Sepehr Gas Kavian Company supplies He with purities of 99.9992, 99.9995, 99.9999% in 50 liter carbon steel cylinders. He capsules as well as equipment related to He capsules, such as regulators, etc., are sold in Sepehr Gas Kavian. The volume of cylinders and capsules available for charging helium gas in Sepehr Gas Kavian Company can be provided in 50 liter carbon steel cylinders with DIN6, BS3 helium gas cylinder valve.
To buy He gas, He cylinders, and other gases such as argon, nitrogen, Hydrogen, etc., from Sepehr Gas Kavian – with ISO17025 certificate and standard department’s reference laboratory – please contact the following numbers:
+982146835980
+982146837072
+989022734708
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