Polyaluminium Chloride PAC Powder Basicity 45–85% for Industrial Wastewater Treatment
Product Overview
PAC Powder Basicity 45–85% is a Polyaluminum Chloride water treatment chemical designed for industrial wastewater treatment and wastewater clarification.
Basicity is an important technical parameter of PAC powder. It can affect coagulation performance, floc formation, pH adaptability and treatment stability. For industrial wastewater treatment, a suitable basicity range helps PAC powder perform well across different wastewater conditions.
Bluwat PAC-02 is a yellow spray dried PAC powder with basicity of 45–85%, Al2O3 content of at least 30% and insoluble matter of no more than 0.1%. It is widely used for industrial wastewater, municipal wastewater, sewage treatment and general water clarification.
After dosing into wastewater, PAC powder helps destabilize suspended solids, colloids and fine particles. These impurities then gather into larger flocs and can be removed by sedimentation, dissolved air flotation or filtration.

What Basicity 45–85% Means
Basicity refers to the alkalinity and polymerization characteristics of Polyaluminum Chloride.
For wastewater treatment, PAC powder with a wider basicity range can provide flexible coagulation performance under different water quality conditions. Industrial wastewater may have changing pH, turbidity, suspended solids, color and organic matter, so the coagulant must be stable and adaptable.
PAC-02 with 45–85% basicity is suitable for many industrial wastewater treatment systems because it balances coagulation strength, solubility and practical operating performance.
Why PAC Powder Basicity 45–85% Is Used for Industrial Wastewater
Industrial wastewater often contains complex impurities, including suspended solids, colloidal particles, sludge particles, organic matter, process residues and color bodies.
These impurities may remain stable in water and cannot be removed efficiently by natural settling alone. PAC powder helps neutralize the surface charge of these particles and allows them to form micro flocs.
During slow mixing, the micro flocs grow into larger flocs. When PAM flocculant is added after PAC, the flocs can become stronger and settle faster.
PAC Powder Basicity 45–85% is suitable for industrial wastewater systems where stable coagulation and flexible application are required.
Key Advantages
Technical Specifications
| Product Name | PAC Powder Basicity 45–85% |
| Chemical Name | Polyaluminum Chloride |
| Common Name | PAC Powder |
| Recommended Grade | PAC-02 |
| Appearance | Yellow Powder |
| Al2O3 Content | ≥30% |
| Basicity | 45–85% |
| Insoluble Matter | ≤0.1% |
| Type | Spray Dried |
| Main Application | Industrial Wastewater Treatment |
| Other Applications | Municipal Wastewater, Sewage Treatment, Water Clarification, Chemical Coagulation |
| Packaging | 25 kg bags |
Main Applications
How PAC Powder Basicity 45–85% Works
PAC powder is normally dissolved in clean water before dosing.
After the prepared PAC solution is added into wastewater, it disperses quickly under rapid mixing. PAC contacts suspended solids, colloidal particles and fine impurities.
During chemical coagulation, PAC neutralizes the surface charge of these particles. Once the particles lose stability, they begin to form micro flocs.
During slow mixing, the micro flocs grow into larger and stronger flocs. These flocs can then be removed by sedimentation, dissolved air flotation or filtration.
If PAM flocculant is added after PAC, the flocs can become larger and settle faster, improving treatment efficiency.
Suggested Dosing Process
A common wastewater treatment process using PAC powder basicity 45–85% includes the following steps.
The actual dosage should be confirmed by jar testing. Wastewater source, pH, turbidity, suspended solids, color, organic content and treatment target can all affect the best dosage.
PAC and PAM Combination
PAC powder and PAM flocculant are commonly used together in industrial wastewater treatment.
PAC works as the coagulant. It destabilizes fine suspended particles and forms micro flocs.
PAM works as the flocculant. It bridges micro flocs into larger flocs and improves settling speed.
The recommended dosing order is PAC first and PAM second.
For wastewater with high color or stable dissolved pollutants, a water decoloring agent may be used before PAC depending on wastewater condition and jar test result.
PAC-02 Compared with Other PAC Grades
For industrial wastewater projects that require 30% Al2O3 content, low insoluble matter and flexible coagulation performance, PAC-02 is a practical choice.
Packaging and Storage
Bluwat PAC Powder Basicity 45–85% is packed in 25 kg bags with inner plastic bag and outer woven bag.
Storage recommendations:
- Store in a cool, dry and well ventilated warehouse.
- Keep away from moisture and direct sunlight.
- Keep bags sealed before use.
- Avoid exposure to heat and incompatible materials.
- Use the product promptly after opening.
Proper storage helps maintain powder quality, solubility and coagulation performance.
Why Choose Bluwat PAC Powder
Bluwat Chemicals is a professional manufacturer and exporter of water treatment chemicals. We supply PAC powder, PAM flocculant, water decoloring agent, PolyDADMAC, Polyamine and other chemicals for municipal and industrial wastewater treatment.
Bluwat PAC-02 is produced under stable quality control to support consistent Al2O3 content, controlled basicity, low insoluble matter and reliable coagulation performance.
With factory direct supply, 25 kg bag packaging, container loading experience and technical support, Bluwat can help customers select suitable PAC grades according to actual wastewater samples, treatment targets and operating requirements.
Conclusion
PAC Powder Basicity 45–85% is a reliable yellow Polyaluminum Chloride coagulant for industrial wastewater treatment. It helps improve turbidity removal, suspended solids reduction, floc formation, sedimentation and wastewater clarification.
With 30% Al2O3 content, low insoluble matter and stable spray dried quality, PAC-02 is suitable for industrial wastewater, municipal wastewater, sewage treatment and general water clarification.
Bluwat supplies PAC powder basicity 45–85% with factory direct supply, export packaging and technical support for global wastewater treatment customers.










