Acetylene (ethyne) is a colourless unstable gas, C2H2, with a characteristic sweet odour. It is lighter than air, easily soluble in acetone (propanone) and it is explosive under high pressure.
Citing this page:
Generalic, Eni. "Acetylene." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.