Methacrylatoethyl trimethyl ammonium chloride

Basic Information

CAS No.	5039-78-1
EC No.	225-733-5
Linear Formula	C9H18ClNO2
Molecular Weight	207.70 g/mol
Appearance	Colorless to pale yellow liquid (commercial aqueous solution)
Commercial Grade / Assay	To be confirmed by final supplier specification and COA
Typical Commercial Form	Commonly supplied as aqueous solution; commercial form may vary by specification
Melting Point	Not applicable for commercial aqueous solution
Boiling point	Not applicable for commercial aqueous solution
Density	Approximately 1.10–1.15 g/cm³ at 20 °C (typical for commercial solutions)
RIDADR	Not regulated as dangerous goods under typical commercial transport conditions; final status subject to supplier SDS and carrier review
Chemical Structure

Key Applications

METAC / DMC is a bifunctional cationic monomer that readily undergoes free-radical polymerization to produce water-soluble cationic polymers with high charge density. These polymers are valued for their flocculation, retention and conditioning performance. related Cationic Monomers

• Water treatment flocculants and coagulants: Polymerized into high-performance cationic polymers used for clarification, sludge dewatering and removal of suspended solids in municipal and industrial wastewater treatment.

• Paper and pulp chemicals: Applied in the synthesis of cationic polymers that improve fiber retention, drainage, dry/wet strength and sizing efficiency in papermaking processes.

• Textile auxiliaries: Used to produce cationic polymers for dye fixation, antistatic finishing and improved color fastness on natural and synthetic fibers.

• Personal care and cosmetic polymers: Incorporated into conditioning polymers and film-forming agents for hair care and skin care formulations.

• Specialty polymer and oilfield chemicals: Serves as a key monomer for copolymers used in oilfield additives, mining chemicals and functional water-soluble polymers.

• Product Quality & Consistency: Product specifications can be confirmed by COA before shipment. Batch quality and key parameters are reviewed according to customer requirements.

• International Logistics & Supply Stability: Export supply can be arranged through suitable logistics channels. Shipment planning can be discussed according to product properties and destination requirements.

• Safety Documentation & Regulatory Compliance: SDS, COA and shipping documents can be prepared for customer review. Documentation support is available for B2B chemical procurement.

Safety, Handling & Documentation

Standard industrial hygiene practices should be followed when handling this product. Avoid direct contact with skin and eyes. Use appropriate personal protective equipment such as gloves, safety goggles and protective clothing. Ensure adequate ventilation in the working area.

• Handling: Avoid inhalation of vapors or mists. Wash hands and exposed skin thoroughly after handling. Do not eat, drink or smoke in the handling area.

• Storage: Store in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizers and reducing agents. Keep containers tightly closed when not in use. Protect from freezing and direct sunlight where applicable.

• Documentation: Refer to the final SDS before handling, storage and transportation. SDS and COA are available for customer evaluation. Final handling, storage and transportation requirements should follow the supplier SDS and carrier review.