Description

Sodium 2-Sulfoethyl Methacrylate is the sodium salt of a sulfonated methacrylate monomer, a key functional building block for introducing permanent anionic charge and hydrophilicity into polymer chains. This compound is valued for its ability to impart excellent water solubility, adhesion, and anti-static properties to the resulting copolymers. It is primarily needed by formulators and polymer chemists in the water treatment, personal care, textile, and coatings industries seeking to create high-performance, water-based products.

Application

• Water Treatment Chemicals: As a co-monomer for scale inhibition and dispersant polymers used in cooling water, boiler water, and reverse osmosis systems.
• Personal Care & Cosmetics: In the synthesis of hair fixative resins, skin care film formers, and emulsifiers that require enhanced water solubility and mildness.
• Textile & Fiber Processing: For producing antistatic agents, dyeing auxiliaries, and soil-release finishes on synthetic fibers.
• Industrial & Architectural Coatings: As a functional monomer in emulsion polymers for improving pigment dispersion, colloidal stability, and adhesion of waterborne paints.
• Adhesives & Sealants: To enhance the water resistance, adhesion, and mechanical properties of acrylic-based pressure-sensitive and structural adhesives.
• Superabsorbent Polymers (SAP): As a modifying monomer to increase the absorption rate and gel strength in hygiene and agricultural SAP products.
• Paper & Pulp Industry: In the manufacture of wet-strength resins, retention aids, and coating binders.

Basic Information

Product Name	Sodium 2-Sulfoethyl Methacrylate
CAS No.	1804-87-1
Molecular Formula	C6H9NaO5S
Molecular Weight	216.19 g/mol
Synonyms	2-Sulfoethyl Methacrylate Sodium Salt; SEM-Na; Sodium Methacryloyloxyethanesulfonate; 2-(Methacryloyloxy)ethanesulfonic Acid Sodium Salt; Methacryloxyethylsulfonic Acid Sodium Salt; Sodium 2-Methacryloyloxyethanesulfonate; 2-Methacryloyloxyethyl Sulfonate Sodium Salt; 2-(Methacryloyloxy)ethylsulfonate Sodium
EINECS	217-315-1

Quality Control

Our Sodium 2-Sulfoethyl Methacrylate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and shelf-life stability. Certificates of Analysis (COA) documenting key parameters are available for every shipment to support your quality assurance protocols.

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); the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can lead to caking or hydrolysis.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
pH (5% aqueous solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 10 ppm
Residual Monomer (Methacrylic Acid)	≤ 0.5 %

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