What are alums? Give examples.

What are alums? Give examples.
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1 Answer

Answer :

An alum is a type of chemical compound, typically made up of a metal cation and a negatively charged ion such as sulfate, hydroxide, or chloride. Alums are used in a variety of industrial and domestic applications, including water purification, leather tanning, and baking powder.

Some examples of alums include:

Potassium alum (KAl(SO4)2·12H2O)

Ammonium alum (NH4Al(SO4)2·12H2O)

Aluminum potassium sulfate (AlK(SO4)2·12H2O)

Ferric alum (Fe2(SO4)3·18H2O)

It's worth noting that "alum" is also a term used in higher education to refer to a graduate of a specific institution.
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