Polyaluminium Chloride (PAC)

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Polyaluminium Chloride (PAC) – Product Description

Polyaluminium Chloride (PAC) is a highly efficient inorganic polymer coagulant widely used in water treatment and wastewater purification processes. It is manufactured through the reaction of aluminum hydroxide with hydrochloric acid under controlled conditions, resulting in a high-purity coagulant with superior performance compared to conventional alum.

PAC offers excellent flocculation properties, rapid sedimentation, and effective removal of suspended solids, turbidity, organic matter, and heavy metals. It is suitable for a wide range of applications including drinking water treatment, industrial wastewater treatment, sewage treatment, paper industry, textile processing, and food processing industries

Its high charge density and polymerized structure allow for reduced dosage, lower sludge production, and improved water clarity, making it a cost-effective and environmentally friendly solution.

Key Features & Benefits

• High coagulation efficiency
• Rapid floc formation and settling
• Effective in a wide pH range (5–9)
• Low sludge generation
• Reduced chemical consumption
• Improves filtration performance
• Suitable for potable water treatment
• Stable and easy to handle

Applications

• Drinking Water Treatment Plants
• Industrial Wastewater Treatment
• Municipal Sewage Treatment
• Paper & Pulp Industry
• Textile & Dyeing Industry
• Food & Beverage Processing
• Oil & Gas Industry (Produced Water Treatment)
• Swimming Pool Water Treatment

Technical Specifications

Parameter Specification (Typical)

Appearance

Yellow Powder / Light Yellow Liquid

Chemical Formula

[Al₂(OH)nCl₆−n]m

Aluminum Oxide (Al₂O₃)

28% – 31% (Powder) / 10%–18% (Liquid)

Basicity (%)

40% – 90%

pH (1% Solution)

3.5 – 5.0

Insoluble Matter (%)

≤ 0.5%

Density (Liquid)

1.15 – 1.25 g/cm³

Chloride (Cl⁻)

≤ 35%

Heavy Metals

Trace / Within permissible limits

Solubility

Fully soluble in water

Dosage Guidelines

• Typical dosage: 5 – 50 ppm (depending on water quality)
• Exact dosage should be determined through jar testing

Packaging

• Powder Form:
  • 25 Kg HDPE Bags with inner liner
  • Jumbo Bags (500 Kg / 1000 Kg)
• Liquid Form:
  • 30 Kg / 50 Kg Carboys
  • 250 Kg Drums
  • 1000 Kg IBC Tanks

Storage & Handling

• Store in a cool, dry, and well-ventilated area
• Keep away from moisture and direct sunlight
• Use protective gloves and goggles during handling
• Shelf life: 12–24 months (if stored properly)

Advantages over Alum

• Lower dosage requirement
• Works effectively in low temperature water
• Produces less sludge
• Faster settling time
• Wider pH operating range

Compliance

• Suitable for drinking water treatment (as per international standards)
• Meets typical requirements of WHO / BIS / ASTM guidelines