ACETYLENE is a colorless gas with a faint garlic-like odor. Easily ignited and burns with a sooty flame. Gas is lighter than air. Flame may flash back to the source of a leak very easily. Under prolonged exposure to fire or heat the containers may rupture violently and rocket.



National Center for Biotechnology Information. PubChem Database. Acetylene, CID=6326, (accessed on May 27, 2019)