Definition

1. Noun:
   • A chemical compound containing four chlorine atoms per molecule: A "tetrachloride" is any compound in which a single molecule is composed of one atom of another element bonded to four atoms of chlorine.

Usage

• The term "tetrachloride" is used specifically in chemistry to name and describe compounds with the formula , , , etc., where the prefix denotes the other element.
• It is a technical term. In common usage, the full compound name (e.g., carbon tetrachloride) is typically used.

Examples

• Noun:
  • Carbon tetrachloride was once widely used as a solvent and in fire extinguishers.
  • The laboratory procedure required the careful handling of silicon tetrachloride.
  • The formation of titanium tetrachloride involves a direct reaction of the metal with chlorine.

Advanced Usage

• Naming Convention: In systematic chemical nomenclature, "tetrachloride" follows the name of the central element (e.g., zirconium tetrachloride, ZrCl₄).
• As a Class: The term can refer to the entire class of such compounds. For example: "Many metal tetrachlorides are volatile liquids or solids."

Variants and Related Words

• Tetrachloro-: A prefix used in more complex chemical names to indicate the presence of four chlorine atoms as substituents. (e.g., tetrachloroethylene, C₂Cl₄).
• Perchloride: An older, less specific term sometimes used for chlorides with a high proportion of chlorine, but "tetrachloride" is the precise term for four atoms.

Synonyms

• Perchloride (archaic/contextual): In some historical texts, "perchloride" was used similarly, but it is not a precise synonym as it does not specify the number of atoms.

Notes

• There are no common idioms or phrasal verbs associated with this technical chemical term.
• The word is a combination of the Greek numerical prefix "tetra-" (meaning four) and "chloride" (a compound of chlorine).

Noun

1. any compound that contains four chlorine atoms per molecule