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Industrial Grade Polyaluminum Chloride
Product FeaturesPolyaluminum chloride is a widely used inorganic high-molecular coagulant, primarily known for itshighly 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 efficient purification .
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
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Coal preparation plant
coal powder settling
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Industrial wastewater
removal of suspended solids and heavy metals
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Mining
accelerating the clarification of tailings water
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Municipal water use
coagulation and clarification
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Oilfield Chemicals
Stabilization Operations
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Papermaking industry
pollutant removal
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%.
FAQ
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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.
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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.
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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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