Oxygen

Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the challogen group on the periodic table and is a highly reactive nonmetallic element and oxidizi...

Nitrogen

Nitrogen is a chemical element with symbol N and atomic number 7. It is the lightest pnictogen, and at room temperature it is a transparent, odorless diatomic gas. Nitrogen is a co...

Argon

Argon is a chemical element with symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third most abundant gas in the Earth's atm...

Carbon dioxide

Carbon dioxide (chemical formula CO2) is a colorless and odorless gas vital to life on Earth. This naturally occurring chemical compound is composed of a carbon atom covalently dou...

Propane

Propan is a three-carbon alkane with the molecular formula C3H8, normally a gas, but compressible to a transportable liquid. A by-product of natural gas processing and petroleum re...

Helium

Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the perio...

Argon-carbon dioxide

© C-50 (50% argon/50% C02) is used for short arc welding of pipes, ® C-40 (60% argon/40% C02) is used for some flux-cored arc welding cases. Better weld penetration than C-25....

Acetylene

Acetylene (systematic name: ethyne) is the chemical compound with the formula QHj. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a ch...