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Bromothymol Blue

Key Stage 3

Meaning

Bromothymol Blue is an indicator dye that changes colour depending on the pH of a solution.

About Bromothymol Blue

Bromothymol Blue slightly acidic and is orangey-yellow when not added to another solution.
Bromothymol Blue changes colour quickly between pH 6 and 8 to turn from orange, through green to blue colour at pH 8 and beyond.
Bromothymol Blue pH scale.
BromothymolBluepHScale.png