Use "thymol blue" for both basic and acidic indicator?

[Chem_Mod]

Question: "thymol blue" is listed as both an acidic and basic indicator with ranges (1.2-2.8) and (8.0 - 9.6), is this an error? If it is not, then can we use it for both a basic and acidic indicator?

[Chem_Mod]

Answer: This is possible, but make sure you know what color changes will occur for whether you are finding an acidic stoichiometric point or a basic stoichiometric point.

[Jacob Kirkosian 3C]

With thymol blue: when moving from a pH of 1.2 to 2.8, the color of the indicator will change from red to yellow. From a pH of 8.0 to 9.6, the thymol blue will move from yellow to blue.