Acetylene (C2h2) Acetylene (C2H2) is a colorless, highly flammable gas, with a characteristic ether and garlic-like smell. It is often used as a fuel gas for welding, cutting, and brazing. Acetylene has a special chemical property which is the triple-bond between its carbon atoms. This triple-bond attribute leads to the gas having several unique features including a very high flame temperature when burned in an oxygen-rich atmosphere. Varying the feed ratio of oxygen and acetylene to an oxy-acetylene torch can produce a shielding atmosphere from oxidizing to carburizing, imparting different physical properties to working metal.Acetylene grades we offer: PurityPlus Purified 2.6(for atomic absorption) High Purity, Atomic Absorption Grade Acetylene is also a fuel gas for atomic absorption spectrophotometry analyzers. Acetylene is also widely used in organic chemical and polymer synthesis. The classic acetylene synthesis involves adding water to calcium-carbide chips. This process will be recognized by anyone who has seen an antique miner’s helmet with flame illumination. While a large percentage of all commercial acetylene makes use of this method, a significant fraction of North American acetylene production relies on ethylene chemistry today.To purchase high quality PurityPlus Acetylene in the St. Louis area, you can contact us at 314.644.3500 or through our online web form.