Which common chlorinated hydrocarbons are called methylene chloride, chloroform, and carbon tetrachloride?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Methylene chloride, chloroform, and carbon tetrachloride are common names for specific chlorinated hydrocarbons that belong to the family of organohalogen compounds. These substances are often produced through the chlorination of methane.123

The chemical identities for these compounds are as follows:

  • Methylene chloride: Represented by the chemical formula CH2Cl2, this is a volatile, colorless liquid widely used as a solvent.124
  • Chloroform: Represented by the formula CHCl3, this clear liquid was historically used as an anesthetic and remains an important industrial chemical.52
  • Carbon tetrachloride: Represented by the formula CCl4, this dense, toxic liquid has been used in the manufacture of refrigerants and as a solvent.267

These common names have been in use for a long time, even as formal IUPAC nomenclature provides systematic ways to identify these structures based on their carbon framework and halogen substituents.2