Argon price index

Argon Price Index

This post is a summary of the Argon price developments. The price developments of Argon are expressed in US$ prices converted FX rates applicable at the time when the price was valid. Argon price index developments are calculated from multiple separate sources of data to ensure statistical accuracy.

The outlook for Argon prices is generated from different inputs including:

• Very recent price developments of immediate cost drivers of Argon prices
• Recent price developments of underlying feedstocks which drive the price of Argon
• Market futures for both cost drives and feedstocks of Argon prices
• Adjustment of current supply/demand imbalances in the Argon market
• Longer term trends in likely demand conditions

Further sources of information on the Argon price chart

What is Argon

Argon is a chemical element with the symbol “Ar” and atomic number 18. It is a colorless, odorless, and tasteless inert gas, meaning it is chemically non-reactive under most conditions. Argon is part of the noble gases group in the periodic table, which also includes helium, neon, krypton, xenon, and radon.

Here are some key characteristics and uses of argon:

Inertness

Argon is chemically inert, which means it does not readily react with other elements or compounds. This property makes it useful for various applications where a non-reactive atmosphere is needed.

Abundance

Argon is the third most abundant gas in the Earth’s atmosphere, after nitrogen and oxygen. It makes up about 0.93% of the Earth’s atmosphere by volume.

Production

Argon is typically obtained as a byproduct of the production of liquid oxygen and liquid nitrogen through the fractional distillation of air. It can also be produced by various other methods, including the separation of argon-rich gases from natural gas wells.

Industrial Uses

Welding

Argon is commonly used as a shielding gas in welding processes, such as TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding. It helps protect the weld area from atmospheric contamination, ensuring high-quality welds.
Metal Manufacturing: In the production of metals like steel and aluminum, argon is used for processes such as annealing, heat treating, and sintering.

Electronics

Argon is used in the manufacturing of semiconductors and other electronic components, where it can create controlled environments during various processes.
Scientific and Laboratory Applications:

In scientific research, argon is used as a carrier gas in gas chromatography and as a detector gas in certain types of detectors.

Liquid argon is used as a cryogenic cooling agent in some laboratory equipment and experiments.

Lighting

Argon gas is used in certain types of gas-discharge lighting, such as argon-ion lasers and fluorescent lighting. When an electrical current passes through argon gas, it emits a characteristic blue-violet glow.

Medical Applications

Argon has some medical uses, primarily in laser surgery and cryotherapy. In laser surgery, argon-ion lasers are used for various medical procedures.

Preservation

Argon can be used to displace air in containers to extend the shelf life of certain perishable goods, such as wine, by reducing oxidative spoilage.

Argon’s inertness and abundance make it a valuable resource in various industrial and scientific applications. It plays a crucial role in ensuring the quality and safety of many processes and products

How is Argon produced

Argon is typically produced through the fractional distillation of air, a process known as cryogenic distillation. Here are the steps involved in the production of argon:

Air Separation

The primary source of argon is the Earth’s atmosphere, which contains about 0.93% argon by volume. Air separation plants, also known as cryogenic air separation units, are used to extract argon from air. The air is first filtered to remove dust and impurities.

Compression

After filtration, the air is compressed to increase its pressure. This compression step raises the temperature of the air as well.

Cooling

The compressed air is then cooled in a series of heat exchangers and refrigeration units. This cooling process liquefies the components of the air, including nitrogen, oxygen, and argon. The liquefied air is brought to extremely low temperatures, typically below -185 degrees Celsius (-300 degrees Fahrenheit).

Fractional Distillation

The liquefied air is introduced into a distillation column, which is often a tall, insulated tower with multiple trays or packing material. Inside the column, the air is allowed to slowly warm up and vaporize. As the air rises through the column, it undergoes fractional distillation based on the differences in boiling points of its components.

Nitrogen, with the lowest boiling point (-196 degrees Celsius or -321 degrees Fahrenheit), vaporizes first and is drawn off as a gas from the top of the column.
Argon, with a slightly higher boiling point (-186 degrees Celsius or -303 degrees Fahrenheit), vaporizes later in the column and is collected separately.
Oxygen, with a higher boiling point (-183 degrees Celsius or -297 degrees Fahrenheit), vaporizes last and is also collected separately.
Separation and Collection: The separated argon vapor is condensed back into a liquid by further cooling. It is then collected and stored in cryogenic containers or tanks for distribution and use.

Purification

In some cases, additional purification steps may be required to remove trace impurities from the argon, ensuring its purity for specific applications.

The fractional distillation of air allows for the separation of argon from other atmospheric gases, primarily nitrogen and oxygen, based on their different boiling points. This process results in the production of high-purity argon gas, which can be used in various industrial, scientific, and medical applications

What is Argon used for

Argon is used for a variety of industrial, scientific, and commercial applications due to its inert nature and unique properties. Some of the common uses of argon include:

Welding

Argon is widely used as a shielding gas in welding processes, such as TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding. It forms a protective atmosphere around the weld area, preventing the oxidation and contamination of the molten metal. This results in high-quality, clean welds.

Metal Manufacturing

In metal production and processing, argon is used for various purposes:

Annealing

Argon is employed to create controlled, oxygen-free environments for annealing processes, which improve the properties of metals.

Heat Treating

Argon is used to provide a non-reactive atmosphere for heat treating metals, preventing surface oxidation.

Sintering

Argon can be used during the sintering of metal powders to create dense, solid metal components.

Electronics

Argon gas plays a role in the electronics industry:

Semiconductor Manufacturing

It is used in the production of semiconductors and microchips, where it helps maintain controlled atmospheres during various manufacturing steps.

Plasma Etching

Argon is utilized in plasma etching processes for microfabrication and semiconductor device fabrication.

Lighting

Argon is used in certain types of gas-discharge lighting, including argon-ion lasers and fluorescent lighting. When an electrical current passes through argon gas, it emits a characteristic blue-violet glow, which is often used to excite phosphor coatings in fluorescent lamps.

Scientific Research

Argon is used in laboratory and research applications:

Gas Chromatography

It is employed as a carrier gas in gas chromatography, a technique used for separating and analyzing chemical compounds.

Detector Gas

Argon is used as a detector gas in some types of detectors, including mass spectrometers.

Cryogenics

Liquid argon is used in cryogenic applications, such as cooling and preserving biological samples and superconducting materials. It is also used as a cryogenic cooling agent in some laboratory equipment and experiments.

Medical Applications

In medicine, argon is used in laser surgery, where argon-ion lasers are employed for various procedures.

Preservation

Argon can be used to displace air in containers to extend the shelf life of certain perishable goods, such as wine. By replacing the oxygen in the container, argon helps reduce oxidative spoilage.

Oil and Gas Industry

In some cases, argon is used in the oil and gas industry for processes like blanketing and purging of equipment and pipelines to prevent the oxidation of materials and reduce the risk of explosions.

Wine Production: Argon is used in the wine industry to protect wine from oxidation during bottling and storage. It is injected into wine bottles before sealing to create a protective layer above the wine.

These are just some of the many applications of argon, and its inert properties make it a valuable gas in various industries where the control of atmosphere or prevention of oxidation is critica