carbon tetrachloride: meaning, definition, pronunciation and examples
LowTechnical / Scientific
Quick answer
What does “carbon tetrachloride” mean?
A colourless, volatile, nonflammable liquid compound with the chemical formula CCl₄, formerly used as a solvent and in fire extinguishers but now restricted due to its toxicity.
Audio
Pronunciation
Definition
Meaning and Definition
A colourless, volatile, nonflammable liquid compound with the chemical formula CCl₄, formerly used as a solvent and in fire extinguishers but now restricted due to its toxicity.
A specific organochlorine compound known for its solvent properties, density, and historical role in industry and firefighting, now mainly referenced as a hazardous environmental pollutant and a model compound in chemical studies.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Both varieties use the full compound name. The abbreviated form 'tetrachloromethane' is equally used in scientific contexts globally.
Connotations
None beyond the scientific/technical meaning.
Frequency
Frequency is equally low and specialized in both varieties. It may appear slightly more in historical texts related to firefighting or industrial processes.
Grammar
How to Use “carbon tetrachloride” in a Sentence
[Subject] contains carbon tetrachloride.[Subject] was treated with carbon tetrachloride.[Subject] degrades into carbon tetrachloride.The use of carbon tetrachloride [resulted in X].Vocabulary
Collocations
Usage
Meaning in Context
Business
Only in specific industries (e.g., chemical manufacturing, environmental remediation) in regulatory or liability discussions: 'The cleanup costs included remediation of soil contaminated with carbon tetrachloride.'
Academic
Primary context. Used in chemistry, environmental science, toxicology, and history of technology: 'The mechanism of hepatic injury induced by carbon tetrachloride was studied.'
Everyday
Virtually never used in casual conversation. If mentioned, it would be in a context of hazard warnings or historical anecdotes: 'My grandfather used a fire extinguisher with carbon tetrachloride.'
Technical
The main register. Used in chemical safety data sheets, analytical chemistry, and industrial process descriptions: 'The sample was extracted using carbon tetrachloride as the organic phase.'
Vocabulary
Synonyms of “carbon tetrachloride”
Strong
Neutral
Weak
Vocabulary
Antonyms of “carbon tetrachloride”
Watch out
Common Mistakes When Using “carbon tetrachloride”
- Misspelling: 'tetrachloride' as 'tetrachlorate' (which is a different ion).
- Incorrect pronunciation stress: placing primary stress on 'car-' instead of the first syllable of 'tetrachloride'.
- Using it as a countable noun (*'a carbon tetrachloride') – it is generally uncountable.
FAQ
Frequently Asked Questions
Its use is heavily restricted globally. It is banned in consumer products under the Montreal Protocol due to its ozone-depleting potential and toxicity. Minor uses may exist in strictly controlled laboratory or industrial chemical synthesis.
It is a dense, non-flammable liquid that vaporises easily. The vapour smothers flames by displacing oxygen and inhibiting the chemical reaction of combustion, making it effective for electrical and liquid fuel fires.
The prefix 'tetra-' comes from Greek, meaning 'four'. 'Chloride' indicates the presence of chlorine atoms. Thus, 'tetrachloride' means a compound containing four chlorine atoms bonded to another element, in this case, carbon.
The systematic IUPAC name is 'tetrachloromethane', which more directly describes its structure as methane (CH₄) where all four hydrogen atoms are replaced by chlorine atoms.
A colourless, volatile, nonflammable liquid compound with the chemical formula CCl₄, formerly used as a solvent and in fire extinguishers but now restricted due to its toxicity.
Carbon tetrachloride is usually technical / scientific in register.
Carbon tetrachloride: in British English it is pronounced /ˌkɑː.bən ˌtet.rə.ˈklɔː.raɪd/, and in American English it is pronounced /ˌkɑːr.bən ˌte.trə.ˈklɔːr.aɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of 'CARBON' with FOUR (TETRA-) CHLORINE (CHLORIDE) atoms attached. It's a carbon atom completely surrounded by chlorine.
Conceptual Metaphor
A DANGEROUS GHOST (colourless, invisible hazard, lingering in environments from past use). A RELIC OF INDUSTRY (once useful, now banned).
Practice
Quiz
What is the primary reason carbon tetrachloride is no longer used in consumer products?