Description
Polyaluminum Chloride (PAC) is a highly effective inorganic polymer coagulant widely used for water treatment and wastewater treatment applications. It helps remove suspended solids, colloidal particles, organic matter, and other impurities by promoting coagulation and flocculation, making contaminants easier to separate through sedimentation and filtration.
Genome Specialities FZC supplies Polyaluminum Chloride (PAC) for a wide range of industrial and municipal water treatment applications.
according to the specific requirements of the treatment process, PAC is available in both liquid and solid forms.
Key Characteristics and Uses
| Property | Details |
|---|---|
| Product Name | Polyaluminum Chloride (PAC) |
| Chemical Formula | Alₙ(OH)ₘCl₍₃ₙ₋ₘ₎ |
| Chemical Type | Inorganic polymer coagulant |
| CAS Number | 1327-41-9 |
| Molecular Weight | Variable (polymeric) |
| Appearance | Yellow to pale yellow liquid or powder |
| Odor | Odorless |
| pH (1% solution) | ~3.5 – 5.0 |
| Basicity | 40% – 70% (grade dependent) |
| Aluminum Oxide (Al₂O₃) | 10% – 18% (liquid), up to 30% (powder) |
| Solubility in Water | Completely soluble |
| Density (liquid, 25 °C) | ~1.20 – 1.30 g/cm³ |
| Stability | Stable under normal storage conditions |
| Reactivity | Reacts with strong bases |
| Hydrolysis | Forms Al(OH)₃ flocs in water |
| Ionic Nature | Cationic |
| Function | Coagulant, flocculant |
Key Applications of PAC:
- Water and Wastewater Treatment:
This is the primary use of PAC. PAC is commonly used for industrial wastewater treatment and municipal wastewater clarification.
It can help in reducing turbidity, suspended solids, color, and other contaminants before subsequent treatment stages.
2. Paper and Pulp Industry:
PAC is used as an auxiliary agent to improve drainage rates in the papermaking process and as a retention aid.
Oil and Gas Industry:
It’s used to treat produced water and clarify water used in hydraulic fracturing.
Other Industries:
used in various industrial water treatment and clarification applications.
Forms of PAC:
Polyaluminum Chloride is generally available in liquid and solid/powder forms.
Liquid PAC is typically clear to pale yellow and is convenient for dosing directly into water treatment systems.
Powder may be white to light yellow and is commonly dissolved in water before dosing.
Powder grades can offer higher active aluminum oxide concentrations and may be advantageous for storage and transportation in certain applications.
The appropriate PAC grade depends on factors such as raw water quality, treatment objectives, dosage requirements, equipment, and operating conditions
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