CAS No.: 10043-01-3, 7784-31-8 (octadecahydrate)
Molecular Formula: Al2(SO4)3
Synonyms: Aluminum sulfate, aluminium sulphate, aluminum sulphate, cake alum, filter alum, papermaker's alum, alunogenite, aluminum salt (3:2)
Typical Applications: Aluminium sulfate is typically used as clarifying agents such as coagulants and flocculants for wastewater treatment
Aluminium sulfate, or alum, is a kind of commonly used industrial chemical. It plays an important role in our daily lives and industrial production.
Aluminium sulfate is mainly used as paper making chemicals and water treatment chemicals. It is cost effective to use it as coagulating agent, flocculating agent, and precipitant to reduce the turbidity and remove the flocculation, suspended solids, and the color of precipitated colloidal. Then we can get the drinking water and industrial wastewater clarifying.
Aluminium sulfate is widely used for the water (in lakes) quality purification and recovery. Besides, it is also used for producing aluminium compounds which are commonly used in fire extinguisher, soil additives, soap, edible oil, medicine and cosmetic.
In a word, alum is so important that we can not remove it from our civilization in the foreseeable future.