Definition, Meaning & Synonyms

alkali

noun
/ˈæl.kə.laɪ/
Definition
A substance that has a pH greater than 7 and can neutralize acids, usually soluble in water and often used in various industrial processes.
Examples
  • Sodium hydroxide is a common alkali used in cleaning products.
  • Many plants thrive in alkaline soils, which contain alkali substances.
  • In chemistry class, we learned about the properties of different alkalis.
Meaning
In chemistry, an alkali is a type of base that dissolves in water, producing hydroxide ions (OH−). Alkalis are known for their ability to react with acids to form salts and water.
Synonyms
  • Base
  • OH− compound