1.Insoluble matter, present by mass : 0.5% Max
2.Soluble iron compound(as Fe) percent by mass : 0.7% Max
3.PH (of 5% aqueous solution ) not less than : 2.5 û 2.7
4.Free Acidity % by Wt ,Max : 0.5
5.Lead (as Pb) ppm max : 15
6. Arsenic (as As2O3 ) ppm max : 5.
Alum lumps is packed in a 50kg PP Inner Lining Bags for easy to handle.
Aluminium sulphate
Aprearance: white
Fom : slab
Al2(so4)3 = (56.5 to 57.5%)
Al2 o 3 : (16.5 to 17.5%)
Fe2o3 : max 0.007%
Inssoluble materials (t.S.S) : : max 0.05%
Alum is essentially aluminium sulphate with the empirical formula Al2 (SO4)3.18HO.
Non Ferric Alum is a purer form of aluminum sulphate. It is used in better grades of paper for loading and sizing purposes. It is available both, in solid and in liquid forms.
Ferric alum, also called as Aluminum Sulphate or Ferric Ammonium Sulphate or Iron Alum and has a melting point of 100C. Ferric alum is basically a less pure form of Aluminum Sulphate. When Bauxite and Sulphur Acid are cooked at a certain condition, leading to the formulation of Ferric Alum. It can also be prepared by the crystallization of Ferric Sulphate and Ammonium Sulphate. Its appearance is light violet in color and comes in various forms such as Powder, Lumps, Slabs and Crystal. It is also available in liquid form. Alum is a weak oxidizing agent and being paramagnetic and acidic in nature, it's toxic towards microorganisms. Alum is ideal to prevent rust and been highly soluble in water helps in algae controlling too. Alum can be used in various industries from Chemical to Textile Industry, Automobile Industry to Iron and Steel Industry and even as an etching agent in production of electronic items. Alum can also be applied in several Laboratory such as of Biochemical Analysis, Organic Synthesis, Agri Products and Petrochemicals. Lower grades of alum are used in Paper Industry for loading and sizing purposes. Alum is a primary coagulant for waste water treatment. Jyoti Chemical supplied Alum is free from impurities and is processed through superior quality of raw ingredients. We offer you exactly as per your specified demand of your industrialized sector with the accurate chemical composition. Our offered product is strictly as per the norms set by the industry and its application. Jyoti Chemical from more than two decades provides you with the best quality of Ferric Alum at the lowest possible price, which are available in Powder, Lumps, Slabs and Crystal.