# pH indicator

> halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually

**Wikidata**: [Q300951](https://www.wikidata.org/wiki/Q300951)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/PH_indicator)  
**Source**: https://4ort.xyz/entity/ph-indicator


## References

1. KBpedia
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)