What Is Alum and How Is It Used?
· Aluminum Sulfate: This compound is also known as papermaker's alum. However, it is not technically an alum. Uses of Alum . Alum has several and industrial uses. Potassium alum is used most often, although ammonium alum, ferric alum, and soda alum may be used for many of the same purposes. purifiion of drinking water as a chemical flocculant ; in styptic pencil to stop .