Description

Polyethyleneimine, Dimethylsulfate Polymer CAS NO 30607-77-3 is a cationic polymer synthesized from polyethyleneimine and dimethyl sulfate, resulting in a quaternary ammonium compound with a high charge density. This chemical is valued for its exceptional flocculation, retention, and charge neutralization properties in aqueous systems. It is a critical component for industries such as water treatment, paper manufacturing, and as a functional additive in coatings and adhesives.

Application

• Water & Wastewater Treatment: Acts as a highly effective flocculant and coagulant aid for the removal of suspended solids, organic matter, and clarification of process water.
• Paper & Pulp Industry: Used as a retention and drainage aid to improve fiber and filler retention on the paper machine wire, enhancing production efficiency and paper quality.
• Coatings & Inks: Functions as a dispersant and rheology modifier to stabilize pigment suspensions and control the flow properties of formulations.
• Adhesives & Sealants: Serves as a tackifier and cross-linking agent to improve bond strength and cohesive properties.
• Textile Processing: Employed as a dye-fixing agent and anti-static coating to improve color fastness and handle of fabrics.
• Personal Care: Utilized in hair care and skincare products as a conditioning agent and film-former.

Basic Information

Product Name	Polyethyleneimine, Dimethylsulfate Polymer
CAS No.	30607-77-3
Molecular Formula	(C2H5N)n·(CH3)2SO4
Molecular Weight	Variable (Polymer)
Synonyms	Poly(ethylenimine) dimethyl sulfate quaternary salt; Polyethylenimine quaternized with dimethyl sulfate; PEI-DMS; Poly(ethylene imine) dimethyl sulfate; Polyaziridine, dimethyl sulfate polymer; Cationic polyethylenimine; Polyethylenimine ethoxylated dimethyl sulfate quat; Poly(iminoethylene) dimethyl sulfate
EINECS	Contact for details

Quality Control

Our Polyethyleneimine, Dimethylsulfate Polymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as charge density, molecular weight distribution, viscosity, and active content. A comprehensive Certificate of Analysis (COA) documenting these specifications is provided with every shipment to guarantee compliance with your process requirements.

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 away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Viscous liquid to solid
Color	Colorless to pale yellow
Active Content	30 - 50 % (aqueous solution typical)
pH (as supplied)	4.0 - 8.0
Viscosity	Variable by grade
Charge Density	High cationic

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