Difference between revisions of "Phenolphthalein"
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: [[Phenolphthalein]] is a [[transparent]] without colour when it is in a [[Neutral (Chemistry)|neutral]] [[solution]]. | : [[Phenolphthalein]] is a [[transparent]] without colour when it is in a [[Neutral (Chemistry)|neutral]] [[solution]]. | ||
: [[Phenolphthalein]] changes colour quickly between [[pH]] 7 and 8 to turn pinky purple at [[pH]] 8 and beyond. | : [[Phenolphthalein]] changes colour quickly between [[pH]] 7 and 8 to turn pinky purple at [[pH]] 8 and beyond. | ||
| + | {| class="wikitable" | ||
| + | |+ Phenolphthalein pH scale. | ||
| + | |- | ||
| + | |[[File:PhenolphthaleinpHScale.png|center|600px]] | ||
| + | |- | ||
| + | |} | ||
Revision as of 10:24, 29 September 2018
Key Stage 3
Meaning
Phenolphthalein is an indicator dye that changes colour depending on the pH of a solution.
About Phenolphthalein
- Phenolphthalein is a transparent without colour when it is in a neutral solution.
- Phenolphthalein changes colour quickly between pH 7 and 8 to turn pinky purple at pH 8 and beyond.
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