Alum refers to astringent crystalline double sulfate of an alkali. K2SO4AL2 (SO4)3 24H2O. Used in the processing of pickles and as a flocking agent. Excess aluminum in the environment can be hazardous.
Other Database Pages Exist for this Phrase:
Secondary aluminum (Secondary aluminum refers to an aluminum-bearing ...)
Aluminum (Aluminum makes reference to the most common ...)
Aluminum spaceframe (Aluminum spaceframe refers to an integrated ...)
List of books: Alum