Bromothymol Blue is one of the indicators we will be using in next week's experiment.  What pH range does Bromothymol Blue change colour?

Bromothymol Blue is a pH indicator commonly used in laboratories to determine the acidity or alkalinity of a solution. It changes color within a specific pH range, which is a critical aspect of its application in experiments.

1. Color Change Range: Bromothymol Blue changes color in the pH range of approximately 6.0 to 7.6.

2. Color Indications:

   • At a pH less than 6.0, it appears yellow.
   • At a pH of around 6.0 to 7.6, it transitions from yellow to green.
   • At a pH greater than 7.6, it turns blue.

This characteristic makes Bromothymol Blue particularly useful in experiments involving biological or chemical processes that occur near neutrality. Its color change can help indicate the presence of acids or bases in a solution, allowing researchers and students to monitor pH changes effectively during experiments.