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thymol blue

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thymol blue

[thī‚mȯl ′blü]
(organic chemistry)
C6H4SO2OC[C6H2(CH3)(OH)CH(CH3)2]2 Brown-green crystals soluble in alcohol and dilute alkalies, insoluble in water, decomposes at 223°C; used as acid-base pH indicator.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
The common indicator solutions include thymol blue, methyl orange, bromthymol blue, phenolphthalein, and bromphenol blue.
Alees International Solutions-Web Development
In an effort to understand the extent of impurities in these dyes and the potential impact on the expanded uncertainty of spectrophotometric pH measurements, we have examined seven commercially available sulfonephthalein pH indicators using liquid chromatography-mass spectrometry (LC-MS): bromocresol green (BCG), bromocresol purple (BCP), bromothymol blue (BTB), cresol red (CR), meta-cresol purple (MCP), phenol red (PR), and thymol blue (TB).
Mass Spectra of Sulfonephthalein pH Indicator Dyes and Their Impurities
A 1mM standard solution of methyl thymol blue was prepared by dissolving a calculated quantity of the A.R.
Titrimetric determination of trace amount of Selenium and Tellurium with Methyl Thymol Blue
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