Chemistry (A-level) - CIE Notes
Bromothymol blue indicator changed from blue to yellow over the range 7.6 to 6.0 where the slope is steepest Due to the sharp change in pH, other indicators can be used which change within this region (e.g. phenolphthalein – pH range 8.2 to 10.0):
Chemistry, Levels, Blue, A level, Bromothymol, Bromothymol blue
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