Alkali
01
any water-soluble compound that can turn litmus blue and reacts with an acid to form a salt and water
例
Sodium hydroxide is a strong alkali commonly used in soap making.
Alkalis like potassium carbonate are used to neutralize acids in chemistry labs.
02
a mixture of soluble salts present in arid soils or certain bodies of water, often harmful to agriculture
例
Crops fail in fields with high alkali content in the soil.
The farmer treated the land to reduce the alkali and improve fertility.
