Alkali
01
any water-soluble compound that can turn litmus blue and reacts with an acid to form a salt and water
例子
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
例子
Crops fail in fields with high alkali content in the soil.
The farmer treated the land to reduce the alkali and improve fertility.
