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Home - News - CW-07 Water Treatment Flocculating Agent: Dual-Purpose Dicyandiamide Resin for Waste & Drinking Water

CW-07 Water Treatment Flocculating Agent: Dual-Purpose Dicyandiamide Resin for Waste & Drinking Water

June 4, 2026
Introduction

Access to clean water is a fundamental global priority, and the demand for high-performance, safe water treatment chemicals has never been greater. CW-07 is a dicyandiamide formaldehyde resin-based flocculating agent engineered to serve the dual purpose of industrial wastewater treatment and drinking water purification. As a quaternary ammonium cationic polymer, CW-07 delivers reliable flocculation, turbidity reduction, and color removal across a broad spectrum of water treatment applications while meeting the safety standards required for potable water processing.

Product Overview

CW-07 is a colorless to light-color clear liquid flocculating agent formulated from dicyandiamide formaldehyde resin. With CAS No. 55295-98-2, a specific gravity of 1.1–1.3, and a minimum solid content of 50%, this cationic polymer is designed for efficient charge neutralization and bridging flocculation of suspended solids, colloids, and color-causing compounds. Its low viscosity profile (10–300 mPa·s at 25°C) ensures easy handling, pumping, and rapid dispersion in treatment systems. CW-07 is certified for use in drinking water treatment, making it a versatile solution for municipal and industrial water facilities alike.

Key Technical Specifications
Parameter Specification
Product Code CW-07
Main Components Dicyandiamide Formaldehyde Resin
CAS Number 55295-98-2
Chemical Type Quaternary Ammonium Cationic Polymer
Appearance Colorless or light-color sticky liquid
Viscosity (25°C, mPa·s) 10 – 300
pH (30% water solution) 2.5 – 5.0
Solid Content (%) ≥ 50
Specific Gravity (20°C) 1.1 – 1.3
Solubility Fully soluble in water
Custom Manufacturing Available upon special request
Core Advantages
  • Dual-Purpose Certification: CW-07 is suitable for both industrial wastewater treatment and drinking water purification, delivering a single chemical solution across multiple facility needs.
  • Low Viscosity for Easy Handling: With a viscosity of only 10–300 mPa·s at 25°C, CW-07 pumps and disperses rapidly, reducing energy consumption and ensuring uniform mixing without specialized high-shear equipment.
  • High Active Content: A minimum solid content of 50% delivers concentrated flocculation performance, reducing shipping volumes, storage footprint, and dosage compared to lower-concentration alternatives.
  • Broad pH Compatibility: CW-07 maintains stable flocculation efficiency across a wide pH range (optimal at 6–10), effectively eliminating the need for aggressive pH adjustment chemicals.
  • Low Sludge Generation: Compared to inorganic coagulants such as aluminum sulfate or ferric chloride, CW-07 produces significantly less sludge, lowering dewatering and disposal expenses.
  • PAC Synergy for Cost Optimization: CW-07 can be used in combination with poly aluminum chloride (dosed separately, not premixed), leveraging complementary mechanisms to reduce overall chemical consumption and treatment costs.
  • Rapid Results: High cationic charge density promotes fast floc aggregation—visible within minutes—followed by simple sedimentation or air flotation for clear effluent.
  • Custom Manufacturing: CW-07 can be produced to meet specific requirements including adjusted molecular weight, charge density, or viscosity for unique water chemistries.
Application Areas
  • Drinking Water Purification: Removes turbidity, natural organic matter, and color from surface water and groundwater in municipal plants.
  • Industrial Wastewater: Treats effluent from textile, dyeing, printing, paper-making, mining, and ink manufacturing with reliable color and suspended solids removal.
  • Municipal Wastewater: Functions as a primary coagulant aid or tertiary polishing agent to meet tightening discharge standards.
  • Paper and Pulp: Serves as a retention and drainage aid in paper production while treating process water and white water circuits.
  • Food and Beverage: Suitable for pretreatment of processing wastewater containing organic colloids and color bodies.
Application Method
  1. Dilution: Dilute CW-07 with 10–40 times its volume of clean water, then dose the working solution directly into the wastewater stream.
  2. pH Adjustment: Adjust the wastewater pH to 6–10 for optimal flocculation performance.
  3. Separation: Within several minutes, formed flocs can be removed via sedimentation or dissolved air flotation (DAF), yielding clear treated water.

For enhanced cost efficiency, CW-07 can be combined with poly aluminum chloride (PAC). The two chemicals must be introduced at separate dosing points—never premixed—to leverage their complementary organic polymer and inorganic coagulation mechanisms. This synergy reduces overall chemical consumption while maintaining excellent effluent quality. Jar testing is recommended to determine optimal dosage ratios for each specific water matrix.

Market Position for European and American Customers

CW-07 is manufactured to meet the rigorous quality and safety standards demanded by European and North American water treatment markets—including compliance with regulations governing chemicals used in drinking water. Each batch is supported by comprehensive technical documentation, consistent quality control, and dependable supply chain logistics. Customers can specify custom formulations tailored to their unique source water chemistry. Dedicated technical support—covering jar testing, dosing optimization, and system integration—is provided to every customer.

Conclusion

CW-07 is a versatile, high-performance flocculating agent bridging industrial wastewater treatment and drinking water purification. Its dicyandiamide formaldehyde resin chemistry, low viscosity profile, high solid content, simple 3-step application protocol, PAC synergy for cost optimization, and dual-application safety certification make it an ideal choice for water treatment professionals seeking reliability, efficiency, and regulatory compliance. For technical inquiries, sample requests, or custom formulation discussions, please contact our sales team today.