what is aluminum sulfate used for
Any form of aluminum sulfate could be called alum, including toxic versions of the chemical. However, the type of alum you find used for pickling and in deodorant is potassium alum, KAl(SO 4) 2 Â·12H 2 O. Sodium aluminum sulfate is a type of alum that is used in commercial baking powder.owever, the type of alum you find used for pickling and in deodorant is potassium alum, KAl(SO 4) 2 Â·12H 2 O. Sodium aluminum sulfate is a type of alum that is used in commercial baking powder.