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THYMOL BLUE INDICATOR
Various Acid and Base Solutions pH
Fourteen solutions of varying pH levels react with thymol blue, a pH indicator. pH can be measured based on the resulting color with the addition of thymol blue. It transitions from red to yellow at pH 1.2 to 2.8 and from yellow to blue at pH 8.0 to 9.6.
Copyright:© 1987 Chip Clark - Fundamental Photographs
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