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Polyaluminium Chloride (PAC) HB

Polyalumınıum Chlorıde HB

The high basicity product of PAC. It is much more effective than low and mid basicity PACs. Higher basicity means higher charge neutralization capacity. Polimeric species in higher basicity products are dominant to monomeric and oligomeric species.

An empirical formula, Aln(OH)mCl(3n−m), where 0 < m< 3n can be written to describe overall PAC composition. The degree of neutralization of hydrated Al(III), or basicity, is expressed as the mole ratio of OH/Al(m/n). This ratio is often called the ligand or hydroxyl number r: aluminum chloride has r = 0; aluminum hydroxide, r = 3; and PAC products have r values ranging from about 0.5 to 2.5. PAC solution products are always acidic. The pH ranges from < 1 to ca 4.0. The total aluminum concentration, conventionally expressed as Al2O3 or alumina content, is important to product composition and activity. Total Al content of PAC products as Al2O3 ranges from about 6 to 24% by weight in aqueous solutions. PAC products can also contain other inorganic salts and these salts can affect PAC properties.

Product Specifications

  • Highly concentrated chemical
  • High strenght floc formation
  • Rapid floc formation
  • Fast reaction at lower water temperatures
  • Direct dosing, no need to prepare solution
  • Less sludge formation than alum or ferric salts
  • Less chemical dosing than alum or ferric salts
  • High COD removal rate
  • High heavy metal removal rate
  • High turbidity and suspended solid removal rate
  • Less Residual Aluminium (Al+3)
  • Little effect on pH
  • Stable product. No AlOH formation

Technical Data

  • Appearance: Clear Liquid
  • Al2O3: 7-23 %
  • Basicity: 75 – 85 %
  • Density: 1,1 – 1,4 g/cm3
  • pH (%5 Sol.): 3,5-6,5
  • Viscosity: 10 – 25 cps