Aluminum Chlorohydrate(ACH)
Aluminum Chlorohydrate (ACH) - High-Performance Water Treatment Coagulant
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Aluminum Chlorohydrate (ACH) Chemical Properties
- Product name: Aluminum chlorohydrate coagulant
- CAS Number: 1327-41-9
- EINECS NO.: 234-933-1
- HS.Code: 3824.90
- Molecular Formula: AlClHO
- Appearance: colorless and transparent liquid, white solid
- Packing: Bags, drums, or bulk containers
- Other Name: Polyaluminium Chloride, Aluminum hydroxychloride, Aluminum oxychloride
Aluminum Chlorohydrate Specification
| ITEMS | SPECIFICATIONS |
| Al2O3 | ≥24% |
| Cl | ≤8.4% |
| Basicity | 60-95 |
| AL:CL | 1.9-2.1 |
| Water Insoluble Substance | ≤0.01% |
| SO42- | ≤200 ppm |
| PH value | 3.8-4.5 |
| ITEMS | SPECIFICATIONS |
| Al2O3 | ≥46% |
| Cl | ≤18% |
| Basicity | 60-90 |
| AL:CL | 1.9-2.1 |
| Water Insoluble Substance | ≤0.01% |
| SO42- | ≤500 ppm |
| PH value | 3.9-4.6 |
| ITEMS | SPECIFICATIONS |
| Al2O3 | 46.4-48.4% |
| Cl | 16.3-17.3% |
| Basicity | 60-90 |
| AL:CL | 1.9-2.1 |
| Water Insoluble Substance | ≤0.01% |
| SO42- | ≤200 ppm |
| PH value | 4.0-4.5 |
| ITEMS | SPECIFICATIONS |
| Al₂O₃ | ≥43.8-47.6% |
| CL | 14.8-16.8 |
| Water Insoluble Matter | ≤0.1% |
| Basicity | ≥82% |
| AL:CL | 1.90:1~2.10:1 |
| PH value | 4.0-4.5 |
| ITEMS | SPECIFICATIONS |
| Al2O3 | ≥23% |
| Cl | ≤8.5% |
| Basicity | ≥81% |
| PH value | 4.0-4.5 |
| Specific Gravity (20℃) g/ml | 1.330-1.350 |
Available Product Forms
| Form | Key Characteristics | Typical Applications & Advantages |
| Colorless Transparent Liquid | Ready-to-use solution, uniform consistency. | Ideal for direct use in production (e.g., antiperspirants, water treatment) where easy pumping, fast mixing, and no dissolution are required. |
| White Solid | Concentrated form, requires dissolution before use. | Best for long-distance shipping, storage flexibility, or when precise dry powder blending into final formulations (e.g., certain cosmetics) is needed. |
Types of Aluminum Chlorohydrate
Powerful Coagulation Performance: As a high-performance coagulant, ACH effectively removes suspended solids, turbidity, and organic matter from water. It forms dense, fast-settling flocs that improve clarification efficiency in both drinking water and wastewater treatment .
Lower Dosage, Higher Efficiency: ACH requires about 30-50% lower dosage than traditional coagulants like alum or PACl to achieve the same or better treatment results, saving you chemical costs and reducing sludge handling .
Excellent Performance Across pH Range: With higher basicity than conventional aluminum salts, ACH maintains stable coagulation performance across a wide pH range (5.0-9.0), adapting easily to varying water conditions without constant pH adjustment .
Minimal Impact on Treated Water: ACH produces less sludge volume and has minimal effect on final water pH, reducing post-treatment costs and simplifying disposal requirements .
Versatile Multi-Industry Solution: Beyond water treatment, our ACH serves as an effective antiperspirant active ingredient in personal care, a binding agent in paper manufacturing, and a processing aid in various industrial applications .
Drinking Water Purification
ACH effectively purifies drinking water by removing impurities, turbidity, and microorganisms. NSF-certified ACH is suitable for municipal potable water treatment.
Industrial Wastewater Treatment
Treats industrial and municipal wastewater by clumping contaminants for easy removal. Effective for printing and dyeing wastewater, removing iron, fluorine, cadmium, and radioactive pollutants.
Municipal Water Treatment
Ideal for municipal water treatments to eliminate suspended solids and organic compounds.
Additional Industrial Applications
Paper Industry: Binding agent; improves quality and texture
Personal Care: Active ingredient in antiperspirants
Deodorants: Odor-neutralizing properties
| Parameter | Alum (Aluminum Sulfate) | PAC (Polyaluminum Chloride) | ACH (Aluminum Chlorohydrate) |
|---|---|---|---|
| Optimal pH Range | 5.5-7.5 | 4.0-9.0 | 5.0-9.5 |
| Residual Aluminum | Higher | 77% less than alum | Lower than PAC |
| Dosage Requirement | High (60-250 ppm) | Moderate | 30-50% lower than alum/PAC |
| Sludge Production | High | Moderate | Reduced >50% |
| pH Adjustment Needed | Yes | Minimal | Minimal |
FAQ of Aluminum Chlorohydrate (ACH)
ACH requires 30-50% lower dosage than alum, produces significantly less sludge, and maintains effective coagulation across a wider pH range (5.0-9.0) without constant pH adjustment
No. Beyond water treatment, ACH is used as an active ingredient in antiperspirants, a binding agent in paper manufacturing, and a processing aid in various industrial applications
Yes, it is considered safe for use in antiperspirants by major health authorities like the FDA. Extensive research has not found a conclusive link between its use and health risks like breast cancer.
Yes. It is the most common and effective active ingredient in antiperspirants. It works by temporarily blocking sweat ducts, significantly reducing wetness.
Its two primary uses are:
Water Treatment: As a highly effective coagulant for purifying drinking and process water.
Personal Care: As the active ingredient in antiperspirants and deodorants.
Yes. HOO CHEMTEC’s ACH is manufactured to meet relevant industry specifications for its applications, such as those for water treatment coagulants or cosmetic-grade antiperspirant actives.
- Bags: Polypropylene or paper, various sizes.
- Drums: Steel or plastic, 50 to 200 liters.
- Totes/IBCs: Plastic or metal, large capacity.
- Bulk: Tanker trucks or ISO containers.
To ensure its quality and effectiveness, store Aluminum Chlorohydrate in a tightly sealed container in a cool, dry, and well-ventilated area.
HOO CHEMTEC Water Treatment Chemicals
HOO CHEMTEC: Your Partner for Premium Aluminum Chlorohydrate Solutions
We deliver high-purity Aluminum Chlorohydrate (ACH) in both liquid and solid forms, tailored for critical applications from drinking water purification to high-efficacy antiperspirant formulations. Our products meet stringent specifications, ensuring reliable performance as a coagulant or active ingredient.
Partner with us for chemicals that meet your precise standards, backed by a commitment to quality and customer satisfaction that defines our service.
Our products include purifying agents, flocculants, desiccants, scale inhibitors, chelating agents, disinfectants, corrosion inhibitors etc.
- We offer expedited shipping options, ensuring that our products can reach the Chinese port within seven days.
- Customer satisfaction is our priority, and we provide a hassle-free return policy for both products and services.
- Our company has successfully undergone the rigorous SGS field certification inspection.


