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Poly aluminium Chloride (PAC): Uses and Specifications
Poly aluminium Chloride, commonly known as PAC, is a highly effective inorganic polymer coagulant widely used in water purification and wastewater treatment industries. It is recognized for its excellent coagulation performance, rapid sedimentation capability, and cost-effective operation compared to traditional alum chemicals.
PAC is available in liquid and powder forms and is extensively used in municipal water treatment plants, industrial effluent processing, textile industries, paper manufacturing, and swimming pool water treatment.
Chemical Properties of Poly aluminium Chloride
| Property | Specification | ||
| Chemical Name | Poly aluminium Chloride | ||
| Molecular Formula | [Al2(OH)nCl6−n]m | ||
| Appearance | Yellow powder / white powder / brown liquid | ||
| Solubility | Completely soluble in water | ||
| Basicity | 30% – 90% | ||
| Aluminium Oxide (Al2O3) | 28% – 31% | ||
| pH Value (1% Solution) | 3.5 – 5.0 | ||
| Insoluble Matter | ≤ 1.5% | ||
| Grade Price | Industrial / Drinking Water Grade Rs. 563 Per KG |
Uses of Poly aluminium Chloride
1. Drinking Water Treatment
PAC is widely used for purifying drinking water by removing suspended particles, bacteria, and organic impurities. It helps improve water clarity and reduces turbidity effectively.
2. Wastewater Treatment
Industries use PAC for treating industrial wastewater and sewage water. It removes heavy metals, oil particles, phosphates, and harmful contaminants from wastewater.
3. Textile Industry
In textile manufacturing, PAC is used for color removal and dye wastewater treatment. It enhances sedimentation and reduces chemical oxygen demand (COD).
4. Paper Industry
PAC acts as a retention agent and sizing promoter in paper production. It improves paper quality and reduces production costs.
5. Swimming Pool Water Purification
PAC helps maintain clean and safe swimming pool water by removing fine particles and impurities quickly.
6. Oil & Gas Industry
PAC is used in oil refining and drilling wastewater treatment processes to separate suspended solids and oily substances.
7. Sugar and Food Processing
Food and sugar industries use PAC for clarification and purification during processing operations.
Advantages of Poly aluminium Chloride
- Fast flocculation and sedimentation
- Lower sludge production
- Effective over a wide pH range
- Reduces treatment costs
- Better performance than traditional alum
- High efficiency in turbid water
- Easy storage and handling
PAC Technical Specifications
Powder PAC Specification
| Parameter | Standard Value |
| Al2O3 Content | 28% – 30% |
| Basicity | 70% – 85% |
| Water Insoluble | ≤ 1.0% |
| pH (1% Solution) | 3.5 – 5.0 |
| Arsenic (As) | ≤ 0.0005% |
| Heavy Metals | ≤ 0.002% |
Liquid PAC Specification
| Parameter | Standard Value |
| Al2O3 Content | 10% – 18% |
| Specific Gravity | 1.15 – 1.25 |
| pH Value | 3.0 – 5.0 |
| Appearance | Light yellow liquid |
Conclusion
Poly aluminum Chloride is an essential chemical used across multiple industries for effective water purification and wastewater treatment. Its superior coagulation efficiency, low sludge generation, and economical operation make it one of the most preferred water treatment chemicals worldwide. Industries looking for reliable and cost-effective treatment solutions continue to adopt PAC for improved operational efficiency and environmental compliance.
| SKU | N/A |
| Brand | PEAKSUN |
| Category | WATER TREATMENT PLANT |
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