Alum / ˈ æ l u m / is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate (potassium alum) with the formula KAl( SO 4) 2 ·12 H 2 O More widely, alums are doubl
Alum/ˈælum/ is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate (potassium alum) with the formula KAl(SO4)2·12H2O
More widely, alums are double sulfate salts, with the general formula AM(SO4)2·12H2O
When the trivalent ion is aluminium, the alum is named after the monovalent ion
