Product Name: PolyDADMAC (Poly(diallyldimethylammonium chloride))
Brand: TAIRAN
CAS No.: 26062-79-3
Appearance: Clear to light yellow viscous liquid
Packing: 200kg drum / 1000kg IBC tank
Grade: Industrial / Water Treatment
Description
PolyDADMAC is a cationic polymer flocculant widely used as a high-efficiency coagulant in water treatment and industrial processesThis water-soluble polymer carries a strong positive charge, enabling it to neutralize negatively charged particulates, colloids, and natural organic matter. In practice, PolyDADMAC rapidly destabilizes and aggregates suspended solids, leading to improved filtration, enhanced sludge settling, and clearer effluent. It is typically supplied as a viscous liquid concentrate (10–50% solids) and is odorless, non-flammable, and stable under normal conditions
Key Features:
High Charge Density: PolyDADMAC is a strong cationic polymer, providing excellent coagulation and bridging effects at very low dosages.
Rapid Flocculation: Forms large flocs quickly, improving clarification of water and wastewater with minimal chemical consumption.
Wide pH Range: Effective in acidic to neutral waters. Insensitive to pH fluctuations and resistant to hydrolysis and oxidants (e.g. chlorine).
Safety & Stability: Non-toxic to handling personnel (low oral toxicity), soluble in water, non-gel, and thermally stable (decomposes >280 °C).
Versatility: Used alone or in combination with inorganic coagulants (e.g. Polyaluminium Chloride) to enhance performance and reduce costs. Works in low-turbidity or cold-water conditions where traditional coagulants may underperform.
Eco-Conscious Formulation: Formaldehyde-free, and improves removal of organic dyes and contaminants, contributing to reduced disinfection by-products and color in finished water.
Technical Specifications:
| Property | Specification |
|---|---|
| Chemical Name | Poly(diallyldimethylammonium chloride) |
| CAS No. | 26062-79-3 |
| Appearance | Colorless to pale-yellow viscous liquid |
| Solids Content | Typically 10–50% (by weight in solution) |
| Charge Type | Cationic (quaternary ammonium polymer) |
| Average MW | ~200,000–1,000,000 (varies by grade) |
| Density | ~1.03–1.05 g/cm³ (20% solution at 20 °C) |
| Viscosity | ~200–500 cP (20% solution at 20 °C) |
| pH (1% solution) | Approximately 3–7 (acidic to neutral) |
| Solubility | Miscible with water |
| Storage | Keep in closed containers at 5–35 °C; avoid freezing and direct sunlight. |
| Shelf Life | ≥2 years (in original packaging) |
Water & Wastewater Treatment: Used as a primary organic coagulant in municipal drinking water plants and industrial wastewater treatment. It effectively removes suspended solids and turbidity, neutralizes colloidal particles (e.g. clays, clays, humic substances), and significantly reduces sludge volume. At sufficiently high dose it can also remove color-causing organic matter, lowering disinfection by-product precursors.
Sludge Dewatering & Thickening: Enhances dewatering of sludge from sewage, industrial, and mining effluents, improving cake dryness and reducing disposal costs. Its flocculation efficiency accelerates settling and drainage in clarifiers and sludge presses.
Papermaking & Pulp: Improves retention of fine fibers and fillers, controlling “sticky” pitch and latex. Acts as a fixative and retention aid in paper machines, enhancing drainage and product quality. Also used in recycled paper and coated broke systems for antistatic and binding purposes.
Textile & Dyeing: Serves as a formaldehyde-free dye fixative and antistatic agent in textile processing. It helps fix dyes and pigments to fibers, improving color fastness and water clarity of wastewater. Also applied for color removal in dye house effluents.
Other Industries: Used in oilfield operations (drilling mud conditioning and clay stabilization), in mining (flotation and tailings thickening), and in food/beverage (as antifoam or precipitant for proteins). It is also used in cosmetics/personal care as thickeners or conditioning agents.
Packaging & Handling: PolyDADMAC is typically supplied in corrosion-resistant plastic drums or IBC totes. Common packing sizes include 50 kg, 125 kg, 200 kg drums and 1000 kg IBC containers. Always store drums upright, tightly closed, in a cool (5–35 °C), well-ventilated area. Avoid freezing or excessive heat. Refer to the Safety Data Sheet for handling instructions. Wear appropriate personal protective equipment to prevent contact with eyes/skin. In case of spillage, contain and pump into suitable container for disposal or recovery; dilute remaining residue with water and flush to drain if permitted.
Why Choose Our PolyDADMAC: Tairan Chemical’s PolyDADMAC is manufactured to high-quality standards, ensuring consistent charge density and performance. Our products are produced in compliant facilities and tested against international benchmarks. We offer customization of molecular weight and solids content to meet your specific process needs. Backed by technical support and timely delivery, we provide a cost-effective solution to improve your water treatment and industrial processes.
Related Products: For complementary coagulants and flocculants, see our Polyaluminium Chloride (PAC) and Polyacrylamide (PAM) product pages. These products are often used in tandem with PolyDADMAC for optimized water clarification.
Call to Action: Ready to improve your process efficiency? Contact our technical team for sample testing, bulk pricing, and custom solutions. Email us at info@tairanchemical.com or request a quote online. Let Tairan Chemical help you select the right PolyDADMAC grade for your application!
External Authority: According to the U.S. EPA, PolyDADMAC is primarily used as a cationic coagulant and dewatering aid in water treatment processes. It is recognized for its ability to neutralize colloidal particles and enhance sludge settling. Regulatory agencies (e.g. ECHA) note that this polymer must be handled with care due to its high aquatic toxicity, but its low human toxicity and high efficiency make it a trusted choice in water treatment.
