Product
Poly Aluminium Chloride
Poly Aluminium Chloride (PAC) is a pre-hydrolysed inorganic coagulant used to clarify drinking water and treat industrial effluent, working faster and across a wider pH range than alum.
- Also known as
- PAC
- Grades / forms
- 10% / 17% Al₂O₃, liquid & powder · Liquid & powder
- Documents
- TDS · SDS to view and download
Overview
PAC is a polymerised form of aluminium chloride in which part of the chloride has already been replaced by hydroxide. That pre-hydrolysis — expressed as basicity — is what makes it work: the aluminium arrives already in charged polymeric species, so it destabilises colloids almost instantly, forms dense, fast-settling floc and consumes far less of the water's natural alkalinity than aluminium sulphate.
In practice this means lower doses, a working pH window of roughly 5 to 9, less sludge and lower residual aluminium in the treated water. It is supplied as a yellow spray-dried powder with around 30% Al₂O₃, which suits long export routes, or as a liquid at 10% or 17% Al₂O₃ for plants that dose directly from tank.
Applications
- 1Potable water clarification and turbidity removal
- 2Colour removal from textile and dye-house effluent
- 3Phosphate reduction in municipal sewage
- 4Retention and sizing aid in paper mills
- 5Oily and emulsified wastewater treatment
- 6Coagulation ahead of sand filters and UF/RO pre-treatment
Specification
- Appearance
- White to Off White to Pale Yellow Powder
- Aluminium as Al₂O₃
- 29 % ± 1 %
- Basicity
- 40 % ± 5 %
- Chlorides as Cl⁻
- 35 % ± 2 %
- Sulphates as SO₄⁻
- 10 % Max.
- Bulk Density
- 0.650 gm/ml
- Insoluble
- 1.500 % Max.
- pH of 5% Solution
- 1.80 to 4.50
Specification as stated on our Technical Data Sheet, which you can download below.
Documents
PDF documents from our quality records.
Packing & storage
Packing
- 25 kg PE-lined bags (powder)
- 1000 kg jumbo bags (powder)
- 250 kg HDPE drums (liquid)
- 1000 L IBCs (liquid)
Storage & handling
Powder is hygroscopic: keep bags sealed, off the floor and away from humidity. Liquid PAC is mildly acidic and corrosive to mild steel — store in HDPE or FRP tanks and use within about six months.
Enquire
Get a price for Poly Aluminium Chloride
Send grade, quantity and destination port. Price, lead time and documents come back within one business day.
Request a quotation or call +91 97979 77958- Certificate of Analysis with every batch
- SDS in destination format
- Made to your specification
- Private label packing
Questions
Poly Aluminium Chloride, answered.
Poly Aluminium Chloride usually works at a lower dose than aluminium sulphate, across a wider pH range (about 5–9), consumes less alkalinity, settles faster and leaves less sludge and lower residual aluminium. Alum is cheaper per kilogram, but PAC is often cheaper per cubic metre of water treated.
High-basicity PAC (around 70% and above) performs best on low-turbidity and cold water and gives the lowest residual aluminium. Medium-basicity grades handle high-turbidity raw water and effluent well. A jar test on your own water is the reliable way to decide, and samples are available for that purpose.
Powder carries roughly three times the Al₂O₃ per kilogram shipped and keeps for a year or more when dry, so it is the economical choice for export. Liquid PAC avoids make-up tanks and dissolving, and suits plants close to the point of production with direct dosing.
Yes. Cosmo Chemistry manufactures and exports Poly Aluminium Chloride from Surat, Gujarat, India to more than 55 countries, for customers in the water treatment and mining & oil drilling industries. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Poly Aluminium Chloride from Cosmo Chemistry includes a batch-specific Certificate of Analysis (COA) and Safety Data Sheet (SDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
Further reading
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