- Name: Poly Aluminium Chloride (PAC)
- Appearance: White/Yellow Powder
- Type: FB01, FB02, FB03, FB04
- PH Value: 3.5-5.0
- CAS No: 1327-41-9
- HS Code: 28273200
PAC Chemicals, the full name is poly aluminium chloride, can be used for drinking water, wastewater and pond water treatment, as well as sedimentation aids and flocculant in aquaculture. Its aluminum content from 28% to 32% helps clean water to protect the environment. The colors of PAC powder are white, light yellow, and yellow, but PAC chemicals with different colors are also very different in application and production technology.
Common Types of PAC Chemicals for Water Treatment
There are three common types of PAC water treatment chemicals in Fengbai company. They are white 30% PAC for drinking water treatment, light yellow PAC 30% for drinking water and yellow PAC 28% for industrial waste water. The raw materials of white PAC chemical are high-quality aluminum hydroxide powder and hydrochloric acid, and the production process is the most advanced technology spray drying method. The raw materials of yellow PAC are aluminum hydroxide powder, hydrochloric acid, and a little calcium aluminate powder. The production process is drum drying or spray tower drying.
| Item | Type | ||||
| PAC FB01 | PAC FB02 | PAC FB03 | PAC FB04 | ||
| Standard | GB15892-2009 | GB-T 22627-2008 | |||
| Appearance | White PAC Powder | Light yellow PAC Powder | Yellow PAC Powder | ||
| Application | Drinking Water Treatment | Industrial Wastewater Treatment | |||
| AL2O3 % | ≥30 | ≥30 | ≥30 | ≥28 | |
| Basicity % | 40-60 | 70-85 | 50-90 | 50-90 | |
| PH value (1% aqueous solution) | 3.5-5.0 | 3.5-5.0 | 3.5-5.0 | 3.5-5.0 | |
| Water insoluble % | – | ≤0.1 | ≤0.5 | ≤1.5 | |
| Packing | 25 kgs PP bag;20 kgs PE bag; Ton bag | ||||
| Storage | PAC water treatment chemicals shall be sealed and stored in the dry and ventilated place to prevent from rain, high temperature and strong sunlight. | ||||
Important Applications of PAC Chemicals
- Used for drinking water and wastewater treatment. This is because PAC chemicals have the widest range of pH and temperature applications compared to other water treatment chemicals. It can effectively help factories increase production capacity and reduce operating costs.
- PAC chemicals have very little effect on pH, thereby minimizing the need for pH adjustment chemicals, further reducing operating costs.
- It is used in the paper industry to improve drainage in neutral and alkaline processes, and as a retention aid, it increases sizing efficiency and reduces cationic requirements.
- PAC coagulant has good water solubility. During the dissolution process, it is accompanied by a series of physical and chemical reactions such as electrochemistry, coagulation, adsorption and precipitation. The flocs form quickly and coarsely, with high activity and rapid precipitation, and the purification effect on high turbidity water is very obvious.
1. Excellent Coagulation and Flocculation Efficiency
PAC for water treatment contains highly polymerized aluminum species with strong positive charges, enabling rapid neutralization of negatively charged colloidal particles in water. This results in abundant floc formation and highly efficient coagulation and sedimentation performance.
2. Wide Applicability and Strong Adaptability
Poly aluminium chloride (PAC) performs effectively across a broad range of raw water qualities. It maintains stable treatment efficiency even in water with high turbidity, low temperature, or high organic content. It is suitable for municipal drinking water, industrial wastewater, domestic sewage, and various water treatment processes.
3. Lower Dosage and More Economical Operation
Due to its high coagulation efficiency, PAC chemical typically requires a lower dosage than traditional coagulants such as aluminum sulfate, helping reduce overall chemical consumption and operational costs.
4. Rapid Floc Formation and Fast Settling Speed
PAC hydrolyzes at an optimal rate, producing large, dense flocs that settle quickly. This improves treatment throughput and shortens overall processing time.
5. Improved Water Clarity After Treatment
The flocs formed by PAC chemicals effectively remove turbidity, suspended solids, certain heavy metals, and organic contaminants. The resulting treated water is clearer with significantly reduced color levels.
6. Wide pH Operating Range with Low Corrosiveness
This chemical is effective over a broad pH range (approximately 5.0–9.0) and is less corrosive to equipment compared with alum-based coagulants. This helps extend the service life of pipes, tanks, and dosing systems.
7. Low Residual Aluminum Content, More Environmentally Friendly
PAC poly aluminium chloride produces more complete sedimentation, resulting in lower residual aluminum levels in the treated water. This reduces potential health and environmental risks.
8. Good Solubility and Easy Handling
PAC dissolves easily in water, is simple to prepare, and requires minimal equipment for dosing, making it suitable for automated chemical feeding systems.
- Mix the PAC chemical into the solution according to the prescribed dose.
- Put the diluted solution into the sewage source to be treated, according to the formula 1-10g/m3 domestic water, 20-200g/m3 industrial waste water.
- Based on the test formula, the exact dose used for treatment will be measured. After the clear air has settled, it can be used after being sterilized and boiled. The common dosage of river water, lake water and pond water is: 1-10g/m3 water, depending on the turbidity.
- For aquaculture water sources, PAC flocculant should be mixed into a 10-20% solution, then placed in the treated water and stirred to clarify.
Packaging for Solid PAC Powder
- 25 kg woven bags with inner plastic liner
- 50 kg bags or 1,000 kg jumbo bags (FIBC)
Storage Requirements for Solid PAC
- Store in a dry, cool, and well-ventilated warehouse to prevent moisture absorption and caking.
- Keep away from water, strong acids, strong alkalis, and incompatible materials.
- Avoid direct sunlight and heat sources to maintain product stability.
- Stack height should not exceed the recommended limit (typically no more than 20 bags).
Fengbai - A Leading PAC Chemicals Manufacturer in China
- As a leading manufacturer in China, Fengbai has been focusing on the research, production and sales of various water treatment chemicals with more than 15 years of experience. So we can supply PAC Chemicals and other pool chemicals for you.
- Fengbai has its own factory, the advanced product lines, and professional sales team.
- The annual production include 40000 tons PAC chemical for drinking water grade and 30000 tons PAC for industrial wastewater grade.
- These PAC chemicals have been exported to many countries, including Vietnam, Indonesia, Philippines, Malaysia, Thailand, Singapore, Russia, Colombia, Ecuador,etc.
- We can provide high quality products, competitive factory price and good services for all the customers.