perchloromethane: meaning, definition, pronunciation and examples
C2Formal, Scientific, Technical
Quick answer
What does “perchloromethane” mean?
A colourless, volatile, non-flammable liquid with a characteristic odour, whose chemical formula is CCl₄. It is a chlorinated hydrocarbon.
Audio
Pronunciation
Definition
Meaning and Definition
A colourless, volatile, non-flammable liquid with a characteristic odour, whose chemical formula is CCl₄. It is a chlorinated hydrocarbon.
The IUPAC name for the chemical compound carbon tetrachloride, historically used as a solvent, fire extinguisher, and refrigerant, but now largely discontinued due to its high toxicity and environmental impact.
Dialectal Variation
British vs American Usage
Differences
No significant difference in usage or preference for the term itself. Both dialects overwhelmingly use 'carbon tetrachloride' in all contexts.
Connotations
Purely technical and neutral in both dialects.
Frequency
Extremely low frequency in both dialects, limited to highly specialized chemical nomenclature.
Grammar
How to Use “perchloromethane” in a Sentence
[Perchloromethane] is/was used for [purpose].The [property] of [perchloromethane] is [description].[Subject] reacted with [perchloromethane] to form [product].Vocabulary
Collocations
Examples
Examples of “perchloromethane” in a Sentence
adjective
British English
- The perchloromethane solution was prepared under a fume hood.
- Old perchloromethane stocks require special disposal.
American English
- The perchloromethane sample was analyzed by GC-MS.
- Perchloromethane contamination was found in the groundwater.
Usage
Meaning in Context
Business
Virtually never used. Might appear in historical company documents, safety data sheets (SDS), or environmental liability reports.
Academic
Used in advanced chemistry textbooks, research papers on organochlorine compounds, and historical reviews of industrial chemistry.
Everyday
Never used in everyday conversation.
Technical
The primary domain. Used in chemical manufacturing, environmental science, toxicology, and regulatory documentation, though 'carbon tetrachloride' is preferred.
Vocabulary
Synonyms of “perchloromethane”
Strong
Weak
Vocabulary
Antonyms of “perchloromethane”
Watch out
Common Mistakes When Using “perchloromethane”
- Misspelling as 'percloromethane' (missing 'h').
- Confusing it with chloroform (CHCl₃).
- Using it in non-scientific contexts where it would be incomprehensible.
FAQ
Frequently Asked Questions
No. Chloroform is trichloromethane (CHCl₃). Perchloromethane is carbon tetrachloride (CCl₄), which has one more chlorine atom and different, more severe toxic properties.
It is highly toxic to the liver and kidneys, a suspected human carcinogen, and a potent ozone-depleting substance. Its production and use have been largely phased out internationally.
They refer to the exact same chemical compound (CCl₄). 'Perchloromethane' is the systematic IUPAC name, while 'carbon tetrachloride' is the common traditional name, which is much more widely recognized.
It is not recommended. Unless you are writing for a highly specialized chemical audience, 'carbon tetrachloride' is the appropriate term, as it is universally understood in scientific and regulatory English.
A colourless, volatile, non-flammable liquid with a characteristic odour, whose chemical formula is CCl₄. It is a chlorinated hydrocarbon.
Perchloromethane is usually formal, scientific, technical in register.
Perchloromethane: in British English it is pronounced /pəˌklɔːrə(ʊ)ˈmiːθeɪn/, and in American English it is pronounced /pərˌklɔːroʊˈmeθeɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: PERfectly CHLOROinated METHANE. 'Per-' means 'thoroughly' or 'completely', so it's methane completely chlorinated.
Conceptual Metaphor
N/A (Highly technical term with little metaphorical application).
Practice
Quiz
In which context are you most likely to encounter the word 'perchloromethane'?