Description

n-Methyldiallylaminehydrochloridepolymerwithepichlorohydrin CAS NO 37890-28-1 is a cationic polyamine polymer, specifically a polyquaternium, synthesized from n-methyldiallylamine hydrochloride and epichlorohydrin. This polymer is valued for its strong cationic charge and flocculating properties, making it an effective agent for water clarification and process separation. It is primarily needed by industries involved in water treatment, paper manufacturing, and mineral processing where efficient solid-liquid separation is critical for operational efficiency and environmental compliance.

Application

• Water and Wastewater Treatment: Acts as a primary coagulant and flocculant for the removal of suspended solids, organic matter, and clarification of process water.
• Paper and Pulp Industry: Used as a retention and drainage aid to improve fiber retention, sheet formation, and water removal on the paper machine wire.
• Mineral Processing: Employed as a flocculant in tailings dewatering and mineral slurry thickening to enhance solid recovery and water recycle.
• Textile Industry: Serves as a dye-fixing agent and coagulant in textile effluent treatment to remove color and chemical oxygen demand (COD).
• Oilfield Applications: Utilized in drilling muds and produced water treatment as a viscosifier and clarifier.
• Industrial Process Separation: Applied in various manufacturing processes for liquid clarification, sludge dewatering, and by-product recovery.

Basic Information

Product Name	n-Methyldiallylaminehydrochloridepolymerwithepichlorohydrin
CAS No.	37890-28-1
Molecular Formula	(C7H14NCl)n • (C3H5ClO)m
Molecular Weight	Variable (Polymer)
Synonyms	Polyquaternium-7; Poly[(methylimino)trimethylene(methylimino)(chloromethylene)ethylene dichloride]; Poly(methyldiallylamine hydrochloride-co-epichlorohydrin); Cationic polyelectrolyte from methyldiallylamine and epichlorohydrin; Poly(MDAH-co-ECH); Polyquat-7; Flocculant 37890-28-1; Cationic polyamine-epichlorohydrin resin
EINECS	Contact for details

Quality Control

Our n-Methyldiallylaminehydrochloridepolymerwithepichlorohydrin is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including cationic charge density, viscosity, solids content, and pH to ensure consistent performance in your applications. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent moisture absorption, which may affect product properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid
Assay (Solid Content)	Contact for details
Viscosity	Contact for details
pH (as is or diluted)	Contact for details
Cationic Charge Density	Contact for details
Identification (IR)	Complies

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.