Specification of Tawas Utaki / Aluminium Sulfat Utaki
Aluminum sulfate (Alum) dissolves in water and is mainly used as a flocculating agent in drinking water purification and wastewater treatment plants, and also in paper making.
Aluminum sulfate is used in water purification and as a mordant for dyeing and printing textiles. In water purification, it causes impurities to coagulate into larger particles and then settle to the bottom of the vessel (or be filtered out) more easily. This process is called coagulation or flocculation. When dissolved in large quantities of neutral or slightly alkaline water, aluminum sulfate produces a gelatinous precipitate of aluminum hydroxide, Al(OH) 3. In dyeing and printing fabrics, the gelatin precipitate helps dyes adhere to clothing fibers by rendering the pigment soluble. Aluminum sulfate is sometimes used to reduce the pH of garden soil.
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