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pH INDICATOR: Range Of Phenolphthalein (2 of 3)<br />
Buffered solutions are used to demonstrate the color range of phenolphthalein.  Indicator is clear for most of the solutions (pH 1-7) and pink to red in more basic solutions (pH 9-10).

Fphoto-45659812-2RM.jpg

pH INDICATOR: Range Of Phenolphthalein (2 of 3)
Buffered solutions are used to demonstrate the color range of phenolphthalein. Indicator is clear for most of the solutions (pH 1-7) and pink to red in more basic solutions (pH 9-10).

Copyright:© 1998 Richard Megna - Fundamental Photographs

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