bromophenol blue
- noun
- /ˌbroʊmoʊˈfiːnəl bluː/
- Specialized
:
azul de bromofenol
- Because bromophenol blue changes color in acidic conditions, it is useful for titration experiments.
Examples
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Many gel electrophoresis protocols call for a trace of bromophenol blue as a tracking dye.
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In the lab, we use bromophenol blue to test pH levels.
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The laboratory technician added bromophenol blue to the solution to monitor pH changes.
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The solution turned yellow when I added bromophenol blue.
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During the experiment, the scientist used bromophenol blue to indicate the acidity of the solution.
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Laboratory protocols often include bromophenol blue as it provides a clear color change during pH testing.
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The pH of the solution was monitored with bromophenol blue to ensure accurate results.
Synonyms
8
7.0
A blue dye from lichens that changes color to show if a liquid is acid or base
1
6.4
A dark green dye used to stain cells, act as an antiseptic, and treat cyanide poisoning
A dye used to show if a liquid is acidic or basic
A dye that changes color to show acidity between pH 3.0 and 4.6
A chemical that changes color to show if a liquid is acidic or basic
An orange dye used in labs that changes color to show if a liquid is acidic or basic
A dye that changes color to show if a liquid is acid or base between pH 6.0 and 7.6
A dye that turns yellow in acid and blue in base
A red-brown dye that turns red in bases and blue in acids
How Acidic
Surface Forms
Morphology
bromophenol + blue
While the adjective 'blue' clearly signals the colour component and is immediately understandable, 'bromophenol' is a specialised chemical name whose function as a dye/acid–base indicator is not predictable from its parts for a B1 learner. Only the colour is transparently derivable from the constituents; the technical indicator meaning requires domain knowledge.
Etymology
Bromophenol blue may come from its parts: bromo (a bromine part), phenol (a simple chemical ring) and blue for its colour. It is a blue dye that changes colour when a liquid becomes more acidic, so it is used 'to show' how acidic a liquid is.