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Alum (Ferric Alum / Non Ferric Alum / Powder / Slabs / Lumps)

Alum is the chemical compound used in a lot of industrial processes due to its beneficial properties like astringent, antiseptic, antibacterial, deodorant, etc. We are a established Manufacturer, Exporter and Supplier of qualitative range of Alum Powder and Crystals, Industrial Alum Powder and Crystals, Ammonium Alum Powder and Crystals, Chemical Industry Alum Powder and Crystals, Ferric Ammonium Alum Powder and Crystals, Water Soluble Alum Powder and Crystals, Laboratory Alum Powder and Crystals, Alum Crystal, Chemicals Alum Powder and Crystals, ETP Alum Powder and Crystals, Ferric Alum Powder and Crystals and Non Ferric Alum Powder and Crystals. Our extensive range of alum is pure, safe and stable and widely acknowledged for accurate composition, reliability, long shelf life.

Alums are useful for a range of industrial processes. They are soluble in water; have an astringent, acid, and sweetish taste; react acid to litmus; and crystallize in regular octahydra. When heated they liquefy; and if the heating is continued, the water of crystallization is driven off, the salt froths and swells, and at last an amorphous powder remains.

Industrial uses
Potassium alum is the common alum of commerce, although soda alum, ferric alum, and ammonium alum are manufactured.
Alum has been used at least since Roman times for purification of drinking water and industrial process water. Between 30 and 40 ppm of alum for household wastewater, often more for industrial wastewater, is added to the water so that the negatively charged colloidal particles clump together into "flocs", which then float to the top of the liquid, settle to the bottom of the liquid, or can be more easily filtered from the liquid, prior to further filtration and disinfection of the water.

Flame retardant
Solutions containing alum may be used to treat cloth, wood, and paper materials to increase their resistance to fire.
Alum is also a component of foamite.
Alum is also used in fire extinguishers to smother chemical and oil fires.

Chemical flocculant
Alum is used to clarify water by neutralizing the electrical double layer surrounding very fine suspended particles, allowing them to flocculate (stick together). After flocculation, the particles will be large enough to settle and can be removed.

Alum may be used to increase the viscosity of a ceramic glaze suspension; this makes the glaze more readily adherent and slows its rate of sedimentation.

Alum is an ingredient in some recipes for homemade modeling compounds intended for use by children.