Poly Aluminium Chloride
Poly Aluminium chloride in all form, is extensively used as an industrial coagulant and Flocculent in different industries. Different grades of PAC are available for different purposes. PAC products are used in water treatment for removal of suspended solid (Turbidity) and other contaminants such as natural organic matter from surface water, Micro - organisms and colloidal particles, silt and clay are stabilized by Surface ELECTROSTATIC charges preventing the particles from coalescing. It is advantageous in water of low to moderate turbidity, possibly because of the greater charge neutralizing capacity relative to alum.
Specifications –Potable Water Grade
Liquid grade
Particulars NAPL-9 NAPL-10 NAPL-14 NAPL-18 NAPL-30 NAPL-30H
Aluminium as Al203% by mass, min. 9.5+/-0.1 10.2+/-0.1 14.0+/-0.0.2 16.2+/-0.0.1 28 28
Chloride as Cl, Percent by mass, MAx. 12.5 10.5 24 23 33 33
Specific Gravity at 25oC, min. 1.18 1.2 1.3 1.35 0.65 0.65
PH of 5% aqueous solution, w/v 1.8 - 4.5 2.5 - 4.5 1.5 - 3.5 2.0 - 4.0 2.5 - 4.5 2.5 - 4.5
Basicity,percent by mass, min. 35 64 35 40 35 64
Sulphate, percent mass, max. 2.7 2.5 2.5 2.5 10 10
Paper Grade
Particulars NAPL - 11P
Aluminium as Al203% by mass, min. 11.5 +/- 0.1
Chloride as Cl, percent by mass, max. 13.50+/- 0.5
Secific Gravity at 25oC, min 1.25 To 1.30
PH of 5% aqueous solution, w/v 2.5 - 4.0
Basicity, percent by mass, min. 35
Sulphate, percent mass, max. 1
Applications
  • Paper manufacturing - with filler, pigment effluents
  • Textile Industry - Elimination of dyes
  • Refineries - Containing oil waste water
  • Ceramic Industry - Colloidal pollutants
  • POWER PLANT
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BN Industries - 2015
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