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Full Version: What is Poly Aluminum Chloride ?
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(PAC) Poly Aluminium Chloride – AluPAC is a high purity product with high aluminum content. AluPAC is produced according to EN 883 (Chemicals used for the treatment of water intended for human consumption). AluPAC neutralizes the colloidal charge whereby compact flocks are formed.
Polyaluminium Chloride is an acidic solution. Classified as corrosive at higher concentrations, it is typically yellow in colour. It is miscible with water at all concentrations although dilute solutions hydrolyse to precipitate Aluminium Hydroxide (Al(OH)3).
Polyaluminium Chloride is not a single product, but a spectrum of polymers which are characterised by their strength (usually in % Al2O3) and basicity – the latter gives an indication of the polymeric composition of PAC.
(PAC) Poly Aluminium Chloride – AluPAC is a high purity product with high aluminum content. AluPAC is produced according to EN 883 (Chemicals used for the treatment of water intended for human consumption).

AluPAC neutralizes the colloidal charge whereby compact flocks are formed. The flocks are precipitated from the water by sedimentation or flotation. The compact flocks provide fine drainage characteristics to the slurry.