Drinking Water Grade Polyaluminum Chloride

Product Features

Polyaluminum chloride is a widely used inorganic high-molecular coagulant, primarily known for its highly effective coagulation and purification capabilities. It works through electrostatic neutralization and adsorption bridging to aggregate fine particles and impurities in water into flocs, which then settle out, achieving the desired purification effect.

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Parameters

Project	Indicators for liquid products	Solid product indicators	Notes
Appearance	Colorless to yellowish-brown liquid	White to yellowish-brown powder particles
Aluminium oxide (Al2O3) mass fraction %	≥ 6.0	≥ 28.0 (up to 30.0 in some cases)	Core indicators
Basicity %	30.0 to 95.0	30.0 to 95.0	Degree of aggregation indicator
Insoluble mass fraction %	≤ 0.1 (drinking water grade)	≤ 0.3 (drinking water grade)	The requirement for industrial grade insoluble matter can be relaxed to 1.5%
pH value (10gL aqueous solution)	3.5 to 5.0	3.5 to 5.0
Iron (Fe) mass fraction %	≤ 0.2 (drinking water grade)	≤ 0.2 (drinking water grade)	There are no strict limits for industrial grade

Packing

Main Applications

Cosmetics

intermediate purification
Drinking water

meeting strict hygiene standards
Leather processing

anti-wrinkle treatment
Papermaking Industry

Neutral Sizing Precipitant
Pharmaceuticals

improve purity
Textile Printing and Dyeing Industry

Water Purification

Product Advantages

High-efficiency coagulation with rapid sedimentation: Forms large, dense flocs (floccules) quickly upon addition to water, resulting in high sedimentation efficiency.
Compared to traditional coagulants, it reduces dosage by over 30% and cuts overall costs by more than 40%.
Adaptable and easy to operate

FAQ

Can PAC products still be used if they have clumped together?

Clumping before use: This may be caused by residual moisture not fully evaporated during packaging or moisture absorption during transportation. If the clumping is mild, it can be broken apart and used normally; however, if the clumping is severe, it is recommended not to use the product, as it may fail to dissolve properly.

Clumping during use: Usually caused by excessive dosing speed, over-dosing, or impure dissolution water. Adjust the dosing method and ensure water quality is clean.
What are the storage requirements for PAC?

Moisture protection: Store in a dry, well-ventilated, and cool indoor area to avoid moisture exposure.

Shelf life: Liquid products have an effective storage period of approximately six months, while solid products last about two years. Solid products can still be used after moisture exposure, although their effectiveness may be reduced.
What are the differences among PACs of different colors?

White: Highest quality, used in food, pharmaceuticals, cosmetics, and paper sizing.

Yellow: Used for drinking water and wastewater treatment, with strict heavy metal control.

Brownish: Due to the addition of iron powder, primarily used for industrial wastewater treatment.

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