carbylamine: meaning, definition, pronunciation and examples
Very RareTechnical/Scientific
Quick answer
What does “carbylamine” mean?
An organic compound containing the isocyanide functional group, characterized by the presence of a carbon-nitrogen triple bond to an alkyl group, with the general formula R-N≡C.
Audio
Pronunciation
Definition
Meaning and Definition
An organic compound containing the isocyanide functional group, characterized by the presence of a carbon-nitrogen triple bond to an alkyl group, with the general formula R-N≡C.
Historically refers specifically to an isocyanide, though this older term has been largely superseded in modern chemistry. Can be used in the context of specific chemical tests, such as the carbylamine reaction, for detecting primary amines.
Dialectal Variation
British vs American Usage
Differences
No lexical difference. Usage is identical and equally rare in both scientific communities. The word may appear in British chemistry texts from the early-to-mid 20th century, while modern American textbooks almost exclusively use 'isocyanide'.
Connotations
The term sounds archaic and possibly dates the speaker's training or the text's origin. It may imply a focus on classical synthetic or analytical methods.
Frequency
Extremely low in both varieties. 'Isocyanide' is the dominant, modern term.
Grammar
How to Use “carbylamine” in a Sentence
Undergo the carbylamine reactionDetect X via carbylamine formationThe carbylamine of methyl...Synthesize a carbylamine from...Subject a primary amine to carbylamine reaction conditions.Vocabulary
Collocations
Examples
Examples of “carbylamine” in a Sentence
adjective
British English
- The carbylamine reaction mixture produced a characteristic odour.
- Old lab manuals describe carbylamine synthesis methods.
American English
- The carbylamine test result was positive, indicating a primary amine.
- He identified the compound by its carbylamine derivative.
Usage
Meaning in Context
Business
Not used.
Academic
Found only in historical chemistry literature, specialized organic chemistry textbooks, or papers discussing classical analytical methods.
Everyday
Never used.
Technical
Used specifically to name the functional group (archaically) or to refer to the 'carbylamine reaction' (chloroform + primary amine + base to form an isocyanide), a classical test for primary amines.
Vocabulary
Synonyms of “carbylamine”
Vocabulary
Antonyms of “carbylamine”
Watch out
Common Mistakes When Using “carbylamine”
- Mispronouncing it as 'carby-lamine' (with a long 'a') instead of 'carby-la-meen'.
- Using it as a general term for any amine derivative.
- Confusing it with 'carbamate' or 'carbamide' (urea).
FAQ
Frequently Asked Questions
No, it is an archaic term. The modern and universally preferred term is 'isocyanide'.
It is a classical chemical test where a primary amine is heated with chloroform and an alcoholic potash (KOH) to produce a foul-smelling isocyanide (carbylamine), thus indicating the presence of the primary amine.
You might find it in older chemistry textbooks, historical papers, or in the specific context of the 'carbylamine reaction' test procedure.
Isocyanides (carbylamines) are notoriously and intensely foul-smelling, often described as horrific, nauseating, or reminiscent of burnt rubber and decay.
An organic compound containing the isocyanide functional group, characterized by the presence of a carbon-nitrogen triple bond to an alkyl group, with the general formula R-N≡C.
Carbylamine is usually technical/scientific in register.
Carbylamine: in British English it is pronounced /ˌkɑː.bɪl.əˈmiːn/, and in American English it is pronounced /ˌkɑːr.bɪl.əˈmiːn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think: CARBon + YL (a chemical group) + AMINE (nitrogen compound). It's a specific type of carbon-yl-amine compound with an unpleasant smell.
Conceptual Metaphor
An olfactory signature: The compound is often conceptualized by its intensely foul odor, a key identifying property ('the smelling test').
Practice
Quiz
What is the modern, more common term for a carbylamine?