Difference between revisions of "Pyranine"
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| − | [[File:B2DdPYTCQAAExs0.jpg|thumb|Pyranine fluoresces green in neutral conditions and blue in acidic conditions.]]'''Pyranine''' is a yellow [[arylsulfonate]] dye, commonly found in highlighters, that exhibits strong [[fluorescence]]. | + | [[File:B2DdPYTCQAAExs0.jpg|thumb|Pyranine fluoresces green in neutral conditions and blue in acidic conditions.]] |
| + | '''Pyranine''' is a yellow [[arylsulfonate]] dye, commonly found in highlighters, that exhibits strong [[fluorescence]]. | ||
==Properties== | ==Properties== | ||
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==See also== | ==See also== | ||
*[[Fluorescein]] | *[[Fluorescein]] | ||
| + | |||
| + | ==References== | ||
| + | <references/> | ||
| + | ===Relevant Sciencemadness threads=== | ||
| + | *[http://www.sciencemadness.org/talk/viewthread.php?tid=61506 Pyranine, fluorescein, fluorescent pH indicators, and highlighters] | ||
| + | |||
| + | [[Category:Chemical compounds]] | ||
| + | [[Category:Organic compounds]] | ||
| + | [[Category:Sulfonates]] | ||
| + | [[Category:Arylsulfonates]] | ||
| + | [[Category:Phenols]] | ||
| + | [[Category:Pyrenes]] | ||
| + | [[Category:Dyes]] | ||
| + | [[Category:Fluorescent dyes]] | ||
| + | [[Category:Fluorescent materials]] | ||
| + | [[Category:PH indicators]] | ||
| + | [[Category:Fluorescent pH indicator]] | ||
Revision as of 18:16, 21 August 2015
File:B2DdPYTCQAAExs0.jpg
Pyranine fluoresces green in neutral conditions and blue in acidic conditions.
Pyranine is a yellow arylsulfonate dye, commonly found in highlighters, that exhibits strong fluorescence.
Contents
Properties
The fluorescence of depends on the pH of the solution, which makes it a fluorescent pH indicator. At low pH levels, the color of its fluorescence changes from green to blue. It also acts as a regular pH indicator, and turns from yellow to colorless at the same low pH levels.
Pyranine is highly soluble in water.
Acquisition
Relatively pure pyranine can be found in highlighters and used as a pH indicator.
Projects
- "Radioactive" color-changing baking soda volcano
- Lava lamp
