Argon Gas Properties

Argon is a noble gas that is abundant in nature. Since it is inert, it is useful for industries that need an inert atmosphere. 

Atomic Structure and Basic Characteristics

The chemistry of argon determines its properties and ideal end uses. Argon has an atomic number of 18 and a relative atomic mass of 39.95 g/mol. Its electron configuration is [Ne]3s²3p⁶, indicating the energy levels and sublevels due to how the electrons are arranged. Argon is naturally colorless and odorless in both gas and liquid forms.

Key Physical Properties of Argon Gas

The properties of argon gas include:

Chemical Inertness and Reactivity

Argon is a noble gas that is chemically inert to other substances and cannot form chemical compounds. Its full outer electron shell gives argon very low reactivity. It is also nonflammable and has low thermal conductivity. Argon’s solubility in water is the same as that of oxygen and two times higher than that of nitrogen.

Safety and Hazards

The Occupational Safety and Health Administration (OSHA) classifies argon as Hazard Class 2.2, so safety procedures must be followed. Argon is an asphyxiant — it can displace oxygen in the air, leading to suffocation. Use argon in ventilated areas and wear pressure-reducing regulators when attaching argon cylinders to lower-pressure systems or piping.

Argon in Industrial Uses

Argon gases are used in:

• Manufacturing: Argon is a shielding gas in arc welding to prevent titanium and specialty alloys from oxidizing.
• Beverage preservation: Argon displaces air to prevent wine barrels from oxidizing, spoiling or souring.
• Glass manufacturing: One of the chemical processes involving argon is glass manufacturing. Argon prevents reactions that can impact the process.
• Lighting: Argon is used in fluorescent lamps and lightbulbs.
• Laboratories: Research laboratories use argon to create an inert atmosphere to prevent undesired reactions with other elements.

Storage and Handling Protocols

Store argon in approved cylinders and well-ventilated areas. The temperature of these storage areas must be less than 125 degrees Fahrenheit. Argon is available in compressed cylinders, liquid dewars, bulk and microbulk quantities, and mixtures.

Contact Meritus Gas Partners for Reliable Argon Gas Sourcing

Meritus Gas Partners is your trusted source for argon gas and related support. We have extensive experience providing various industries with pure industrial, specialty and fuel gases. Find a partner near you, or contact us to learn more about our gas solutions and support.