Precise Alum Application
Is Alum A Word. The meaning of alum is a potassium aluminum sulfate kal (so4)2·12h2o or an ammonium.
The meaning of alum is a potassium aluminum sulfate kal (so4)2·12h2o or an ammonium.
The meaning of alum is a potassium aluminum sulfate kal (so4)2·12h2o or an ammonium. The meaning of alum is a potassium aluminum sulfate kal (so4)2·12h2o or an ammonium.
