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Is phenolphthalein color in acid or base?
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Is phenolphthalein color in acid or base?

User Mikael Nitell
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Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes.
User Mukibul H
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