ammonium purpurate: meaning, definition, pronunciation and examples
Very LowTechnical, Historical
Quick answer
What does “ammonium purpurate” mean?
A chemical salt, specifically the ammonium salt of purpuric acid.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical salt, specifically the ammonium salt of purpuric acid.
A historical name for murexide, a purple-red organic compound once used as a dye and later as an indicator in analytical chemistry.
Dialectal Variation
British vs American Usage
Differences
No significant regional differences in usage; the term is identical in British and American technical contexts.
Connotations
Connotes a historical, niche chemical compound. Might imply an older or more specialized text.
Frequency
Extremely rare in both dialects, confined to historical chemistry texts or discussions of dye history.
Grammar
How to Use “ammonium purpurate” in a Sentence
[Ammonium purpurate] + [verb e.g., precipitates, decomposes] + [prepositional phrase e.g., in acidic solution]Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Used rarely in historical chemistry papers or texts on the history of dyes and indicators.
Everyday
Never used.
Technical
The only context of use, specifically in chemistry, particularly analytical or historical chemistry.
Vocabulary
Synonyms of “ammonium purpurate”
Watch out
Common Mistakes When Using “ammonium purpurate”
- Confusing it with ammonium permanganate or other purple salts.
- Misspelling as 'ammonium purpuate' or 'ammonium purpurite'.
- Using it as a common noun instead of a proper chemical name.
FAQ
Frequently Asked Questions
Rarely. Its primary use as an indicator (murexide) has been superseded by more stable and selective compounds in modern analytical chemistry.
It is characteristically purple or violet-red in solution and as a solid.
Almost exclusively in historical chemistry texts, papers on the history of dyes, or very specialized analytical chemistry contexts.
There is no difference; 'ammonium purpurate' is an older name specifying the ammonium salt, while 'murexide' is the more common modern name for the same compound.
A chemical salt, specifically the ammonium salt of purpuric acid.
Ammonium purpurate is usually technical, historical in register.
Ammonium purpurate: in British English it is pronounced /əˈməʊ.ni.əm ˈpɜː.pjʊə.reɪt/, and in American English it is pronounced /əˈmoʊ.ni.əm ˈpɝː.pjə.reɪt/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'AMMonium' from ammonia, and 'PURPurate' from purple. It's a purple ammonium salt.
Conceptual Metaphor
N/A (Highly technical term).
Practice
Quiz
Ammonium purpurate is best known by which more common chemical name?