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2. Bromothymol blue - Wikipedia

   en.wikipedia.org/wiki/Bromothymol_blue

   Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances that would have a relatively neutral pH (near 7). A common use is for measuring the presence of carbonic acid in a liquid.

3. Oxidative/fermentation glucose test - Wikipedia

   en.wikipedia.org/wiki/Oxidative/fermentation...

   It was developed in 1953 by Hugh and Leifson to be utilized in microbiology to determine the way a microorganism metabolizes a carbohydrate such as glucose (dextrose). [1] OF-glucose deeps contain glucose as a carbohydrate, peptones, bromothymol blue indicator for Hugh-Leifson's OF medium or phenol red for King's OF medium, and 0.5% agar.

4. Universal indicator - Wikipedia

   en.wikipedia.org/wiki/Universal_indicator

   Universal indicator components Indicator Low pH colour Transition pH range High pH colour Thymol blue (first transition) Red 1.2 – 2.8 Yellow Methyl orange: Red 3.2 – 4.4 Yellow Methyl red: Red 4.8 – 6.0 Yellow Bromothymol blue: Yellow 6.0 – 7.6 Blue Thymol blue (second transition) Yellow 8.0 – 9.6 Blue Phenolphthalein: Colourless

5. Phthalein dye - Wikipedia

   en.wikipedia.org/wiki/Phthalein_dye

   Phthalein dyes are a class of dyes mainly used as pH indicators, due to their ability to change colors depending on pH. [1] They are formed by the reaction of phthalic anhydride with various phenols. They are a subclass of triarylmethane dyes. Common phthalein dyes include: Bromothymol blue; Bromocresol green; Bromocresol purple; Cresol Red; o ...

6. pH indicator - Wikipedia

   en.wikipedia.org/wiki/PH_indicator

   A pH indicator is a halochromic chemical compound added in small amounts to a solution so the pH (acidity or basicity) of the solution can be determined visually or spectroscopically by changes in absorption and/or emission properties. [1] Hence, a pH indicator is a chemical detector for hydronium ions (H 3 O +) or hydrogen ions (H +) in the ...

7. Teacher Who Got Pregnant After Raping Boy, 12, Gets 25 ... - AOL

   www.aol.com/lifestyle/teacher-got-pregnant...

   A former Tennessee teacher who got pregnant after raping a 12-year-old boy pleaded guilty and has been sentenced to 25 years in prison with no parole. On Dec. 20, Alissa McCommon, 39, of Covington ...

8. Elon Musk could still pocket tens of billions more dollars ...

   www.aol.com/finance/elon-musk-could-still-pocket...

   Elon Musk isn’t getting the $101 billion windfall he so desperately wanted. But he’s still among the richest people on the planet and poised to get much richer in the coming years.

9. Rome's iconic Trevi Fountain reopens after renovation work in ...

   www.aol.com/romes-iconic-trevi-fountain-reopens...

   Rome’s iconic Trevi Fountain reopened Sunday after three months of renovations, just in time for the inauguration of the 2025 Jubilee Holy Year that is expected to draw millions of visitors. To ...