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- Wikimedia category
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- category's main topic
- pH indicator
- Commons category
- PH indicators
- category contains
- chemical compound
via Wikidata · CC0
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Encyclopedic overview
This category contains articles about pH indicators: chemical compounds which change colour or fluorescence in response to changes in pH.
Excerpted from Wikipedia’s “Category:PH indicators” article, available under the CC BY-SA 4.0 licence.