Alum Lumps or Ammonium Alum or Potash Alum

Alum Lumps (Fitkari) are white, translucent crystalline double sulfate blocks, commonly composed of Potassium or Ammonium Alum. Alum lumps are solid, white crystalline chunks of aluminum sulfate or potassium/ammonium aluminum sulfate. They are highly soluble in water and act as strong coagulants, commonly used for water purification, textile dyeing, paper manufacturing and as an astringent in cosmetics.

Applications of Alum Lumps:

• Water Treatment & Purification: Alum lumps act as a flocculant/coagulant to remove suspended particles, impurities and contaminants from water, making it suitable for drinking and industrial use.

• Paper Manufacturing: It is used as a sizing agent to improve the strength, ink resistance and surface properties of paper.

• Textile & Dyeing:  It serves as a mordant to fix dyes onto fabrics, enhancing colorfastness and durability.

• Cosmetics & Personal Care:  It is utilized in deodorant sticks, antiperspirants and aftershave for their antiseptic and astringent properties, which reduce sweat and bacteria.

• Industrial & Technical Uses:

• Leather Tanning:  It is used in the treatment of leather.

• Construction:  It is employed in the production of fireproof textiles, porcelain cement and glues.

• Gardening:  It is used to adjust soil pH for specific plants like hydrangeas.

• Other Applications:  It is used in some culinary applications as an acidulant or in baking powder.

Alum Lumps – Product Specifications:

• Chemical Name: Potassium Aluminum Sulfate/Ammonium aluminum sulfate.

• Common Name: Alum Lumps / Potash Alum

• Chemical Formula: KAl(SO₄)₂·12H₂O

• Molecular Weight: 474.39 g/mol

• Appearance: White translucent solid lumps

• Odor: Odorless

• Solubility: Soluble in water

• pH (1% Solution): 3.0 – 3.5

• Density: Approx. 1.75 g/cm³

• Al₂O₃ Content: 10 – 11%

• Potassium (K₂O): 9 – 10%

• Water Insoluble Matter: 0.1% Max

• Iron (Fe): 0.02% Max

• CAS Number: 7784-24-9

• HSN Code: 28333010

• Grades Available:  Industrial Grade, Water Treatment Grade & Technical Grade.

Packaging: 50 Kg. Bag

MOQ: 50 Kg.