Explore the Energy Glossary

Look up terms beginning with:

phenolphthalein

1. n. [Drilling Fluids]

A pH indicator that is clear below pH 8.3 and red above 8.3. It is the indicator used in various alkalinity titrations.

See: alkalinityendpointhydrolysismethyl orangepHsodium bicarbonatesodium carbonatetitration