adjective
- (chemistry) having more than one replaceable hydrogen atom; capable of donating multiple protons
Usage: technical; chemistry
Examples
- Sulfuric acid is a polybasic acid because it can donate two hydrogen ions.
- Phosphoric acid is polybasic, with three replaceable hydrogen atoms.
- The polybasic nature of the compound allows it to form multiple salts.
- In the titration, the polybasic acid required more base to reach neutralization.
- Polybasic acids are commonly used in industrial chemical processes.