Definition

Noun: 1. A colorless, flammable gas (C₂H₂) used chiefly in welding and in organic synthesis: Ethyne is the systematic IUPAC name for acetylene, a hydrocarbon with a triple bond between its two carbon atoms. It is the simplest alkyne.

Usage and Examples

• As a fuel source: "The welder used ethyne combined with oxygen to produce an extremely hot flame for cutting steel."
• In chemical synthesis: "Ethyne is a fundamental starting material in the organic synthesis of various plastics and chemicals like vinyl chloride."
• Scientific context: "The molecule ethyne has a linear structure due to its carbon-carbon triple bond."

Advanced Usage

• Industrial Context: In large-scale operations, ethyne is often generated from calcium carbide and water or from the partial combustion of methane.
• Historical Note: While 'acetylene' remains common in industrial and trade contexts, 'ethyne' is the preferred name in systematic chemical nomenclature.

Variants and Related Words

• Acetylene (n): The common name for ethyne, especially in welding and industrial applications.
  • Example: "Acetylene torches are standard equipment in metalworking shops."
• Alkyne (n): The class of unsaturated hydrocarbons containing a carbon-carbon triple bond, of which ethyne is the first and simplest member.

Synonyms

• Acetylene

Related Terms (Not Synonyms)

• Oxyacetylene (adj): Describes a process or torch using a mixture of oxygen and acetylene (ethyne).
  • Example: "Oxyacetylene welding requires careful handling of both gas cylinders."

Noun

1. a colorless flammable gas used chiefly in welding and in organic synthesis