cyclohexanone
Very LowTechnical/Scientific
Definition
Meaning
A cyclic ketone with the formula C₆H₁₀O, consisting of a six-carbon ring with one carbonyl group.
An important industrial chemical and organic solvent used in the production of nylon, pharmaceuticals, and other polymers. It is a colorless, oily liquid with a peppermint-like odor.
Linguistics
Semantic Notes
The term is a compound noun formed from 'cyclo-' (indicating a ring structure), 'hexane' (a six-carbon alkane), and the suffix '-one' (denoting a ketone). It refers specifically to a single, well-defined chemical compound.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling and pronunciation are consistent.
Connotations
None beyond its technical, chemical definition.
Frequency
Equally rare outside of chemistry, chemical engineering, and related industrial contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[substance] is dissolved in cyclohexanonecyclohexanone is used as [a solvent/catalyst/precursor]the synthesis of [compound] from cyclohexanoneVocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Discussed in the context of chemical manufacturing, supply chain logistics for industrial solvents, or market reports on nylon precursors.
Academic
Central to organic chemistry textbooks, research papers on oxidation reactions, polymer science, and industrial chemistry.
Everyday
Virtually never used. An individual might encounter it only on a safety data sheet (SDS) for a commercial product.
Technical
The primary context. Used in laboratory procedures, chemical plant operations, patent applications, and material safety documentation.
Examples
By Part of Speech
adjective
British English
- The cyclohexanone derivative showed greater stability.
- A cyclohexanone-based process was developed.
American English
- The cyclohexanone derivative showed greater stability.
- A cyclohexanone-based process was developed.
Examples
By CEFR Level
- Cyclohexanone is a chemical used in factories.
- The laboratory procedure required the use of cyclohexanone as a solvent to dissolve the organic compound.
- In the final step of the synthesis, the intermediate was oxidised selectively to yield cyclohexanone with a 95% conversion rate.
Learning
Memory Aids
Mnemonic
Think: CYCLO (like a bicycle wheel - a ring) + HEX (six, like a hexagon) + ANONE (sounds like 'a known' ketone). A six-carbon ring known as a ketone.
Conceptual Metaphor
A BUILDING BLOCK or PRECURSOR (it is transformed into other, more complex materials like nylon).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'циклогексан' (cyclohexane), which is the fully saturated hydrocarbon without the oxygen atom.
- The '-one' ending is crucial and corresponds to the Russian suffix '-он' in chemical nomenclature (циклогексанон).
Common Mistakes
- Misspelling as 'cyclohexanon' (dropping the final 'e').
- Mispronouncing the stress, placing it on 'hex' instead of 'hexa'.
- Confusing it with its reduced form, cyclohexanol.
Practice
Quiz
What is the primary industrial use of cyclohexanone?
FAQ
Frequently Asked Questions
Yes, it is flammable and can be irritating to the eyes, skin, and respiratory system. It should be handled with appropriate safety precautions in a well-ventilated area or fume hood.
It has a distinctive, acetone-like or peppermint-like odour.
It is extremely unlikely. It is an industrial and laboratory chemical, not a common household product.
Cyclohexane (C₆H₁₂) is a saturated hydrocarbon (alkane). Cyclohexanone (C₆H₁₀O) has a carbonyl group (C=O), making it a ketone. This oxygen atom gives it different chemical and physical properties.