Anionic Polyacrylamide (APAM)

Anionic polyacrylamide is a high molecular polymer formed by the free-radical polymerization of acrylamide monomers. Its molecular chains contain a large number of negatively charged groups, which can bind with positively charged particles. It exhibits excellent flocculation performance and shear resistance, making it an indispensable chemical additive in industrial water treatment, mineral processing, and oil and gas extraction.

Chemical Formula C3H5NO
Cas No. 9003-5-8
Appearance white particles
Solid Content ≥89 %
Molecular Weight 5-20 million

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Features Technical Specifications Applications Advantages Other Related Products

Features

Appearance
White granules or powder
Solubility
Highly water-soluble and dissolves quickly
Molecular weight range
8–25 million (customizable according to application needs)
Water treatment capability
Significantly enhances solid-liquid separation efficiency
Stability
Excellent thermal and chemical stability

Specification

Technical Specifications

Item	Indicator value	Remarks
Appearance	White granule or powder	Particle size can be adjusted according to requirements
Molecular weight	8-25 million	Customized according to application scenarios
Degree of hydrolysis	10%-30	Suitable for different wastewater types
Solid content	≥88%	Ensures high purity
Dissolving time	≤60 minutes	Dissolves quickly and is easy to use
pH range	6-9	Best in neutral or alkaline environments

Applications

Asconsumer
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Cosmetics
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Medical Industdies
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Advantages

Efficient Flocculation
Rapidly aggregates suspended particles to improve water clarity.
Low Dosage, High Efficiency
Achieves effective flocculation with a low dosage, reducing operational costs.
Wide Applicability
Suitable for various pH environments and different types of industrial wastewater treatment.
Environmental Friendliness
Non-toxic, biodegradable, and environmentally friendly.
Shear Resistance
Suitable for complex environments with high flow rates and strong stirring.

Packaging and Storage

Packaging
• 25kg per bag, with an inner moisture-proof plastic bag and an outer woven bag. • Ton-bag packaging is available upon customer request.
Storage
• Store in a dry, cool, and well-ventilated place, avoiding direct sunlight. • Prevent moisture exposure and contact with strong oxidizing agents.
Shelf Life
• Can be stored for 2 years under sealed conditions. Performance testing is recommended for usage beyond the shelf life.

Application-Specific Instructions

Water Treatment
Directly add the prepared solution to wastewater to promote rapid sedimentation of suspended particles.

For oily wastewater or high-turbidity wastewater, increase the dosage as needed.
Sludge Dewatering
Add the solution before dewatering equipment to mix with sludge, facilitating water separation and forming drier sludge cakes.

Optimize the dosage through testing based on sludge type.
Oilfield Operations
Used as a displacement agent in enhanced oil recovery (EOR) by preparing a solution at a specified concentration and injecting it into the oil well.

Add a small amount of the solution to drilling fluids to reduce mud loss and improve drilling efficiency.
Mineral Processing
In tailings dewatering or slurry clarification processes, prepare and add the appropriate amount of solution to promote solid-liquid separation.
Paper Industry
Used as a retention and drainage aid during pulp preparation, with dosage depending on the type of pulp.

Optimize the dosage through testing based on sludge type.

Usage Precautions

Dissolution Sequence
Slowly add the product into water while stirring to avoid clumping caused by adding too much at once.
Water Quality
Use clean, low-hardness water for solution preparation to improve dissolution efficiency.
Dosing Equipment
Use dosing equipment made of corrosion-resistant materials, such as stainless steel or plastic.
Temperature Control
Avoid using hot water (>60°C) during dissolution to prevent product degradation.
Solution Shelf Life
Use the working solution immediately after preparation. Avoid storing it for more than 24 hours to prevent a decline in effectiveness.

Instructions for Use of Polyacrylamide Anionic (PAM)

Preparation of Working Solution
- Slowly sprinkle anionic polyacrylamide into stirred water, preferably clean water with a temperature of 20°C–30°C, to avoid clumping.
- Recommended solution concentration: 0.1%–0.5%, adjustable based on specific needs.
- Stirring time: Generally 30–60 minutes to ensure complete dissolution and form a uniform, transparent solution.
Dosing Method
- Add the prepared working solution to the treatment system using a metering pump or drip-feed method.
- Dosage recommendations:
Wastewater treatment: Typically 1–5 ppm (1–5 grams per ton of wastewater).

Sludge dewatering: 5–20 ppm, adjustable based on sludge type.

Mining applications: 3–10 ppm, adjustable based on slurry concentration.
Mixing and Reaction
- Ensure adequate mixing with the treated medium after dosing. Mild stirring is recommended to avoid damaging flocs with high shear forces.
- Mixing time depends on the application, typically 10–20 minutes.