What is the chemical formula of argon?

The chemical formula of argon is Ar, which is a colorless and odorless inert gas. Mainly used for gas filling and arc welding of stainless steel, magnesium and aluminum bulbs, that is, "argon arc welding".

Argon is a rare gas with chemical formula of Ar, relative molecular weight of 39.95, melting point of-189.2℃, boiling point of-185.7℃, slightly soluble in water and stable in properties. Argon is nontoxic at ordinary atmospheric pressure.

Argon is a nonmetallic element and a monoatomic molecule. Simple substance is a colorless, odorless and tasteless gas. Argon is the earliest rare gas found at present. Its chemical properties are very inactive, but its compound-argon hydrogen fluoride has been prepared.

Extracting argon from tail gas of synthetic ammonia;

The tail gas of synthetic ammonia consists of purge gas and ammonia tank waste gas, and its components are: H2 60% ~ 70%, N2 20% ~ 25%, Ar 3% ~ 8%, CH4 8% ~ 12%, and NH3 about 3%.

Argon extraction from ammonia tail gas includes low temperature rectification and condensation evaporation. Typical processes include three-tower argon extraction process, two-tower argon extraction process and heat pump circulating argon extraction device. Its production process includes four steps: raw gas purification, dehydrogenation, demethanization and denitrification.