Description

Sodium p-Styrenesulfonate is a versatile, water-soluble monomer widely used in polymer chemistry. Its primary value lies in its ability to impart permanent anionic charge, hydrophilicity, and colloidal stability to a wide range of polymeric materials. This compound is essential for manufacturers in the water treatment, coatings, textiles, and advanced materials sectors seeking to enhance product performance through ionic functionality.

Application

• Dispersants & Superplasticizers: A key monomer for producing high-performance polycarboxylate ether (PCE) superplasticizers used in concrete and cement formulations to improve workability and reduce water content.
• Ion-Exchange Resins: Serves as a functional monomer for manufacturing strong acid cation exchange resins, which are critical for water purification, demineralization, and chemical processing.
• Hydrogels & Biomedical Polymers: Used to synthesize hydrogels with high water absorption capacity and biocompatibility for applications in contact lenses, wound dressings, and drug delivery systems.
• Antistatic & Conductive Polymers: Incorporated into polymers to create antistatic coatings for textiles, packaging films, and electronic components, as well as conductive layers for specialty applications.
• Emulsion & Dispersion Stabilizer: Acts as a co-monomer in emulsion polymerization (e.g., for styrene-butadiene rubber, acrylics) to improve colloidal stability and particle size control.
• Scale Inhibitors: A building block for polymers used in industrial water treatment systems to prevent the deposition of calcium carbonate and sulfate scales.
• Textile & Leather Auxiliaries: Used in the synthesis of dyeing auxiliaries, finishing agents, and tanning assistants to improve color fastness and material properties.
• Enhanced Oil Recovery (EOR): A component in polymers designed for chemical EOR to increase the viscosity of injection water and improve oil displacement efficiency.

Basic Information

Product Name	Sodium p-Styrenesulfonate
CAS No.	2695-37-6
Molecular Formula	C8H7NaO3S
Molecular Weight	206.19 g/mol
Synonyms	4-Vinylbenzenesulfonic Acid Sodium Salt; Sodium 4-Styrenesulfonate; p-Styrenesulfonic Acid Sodium Salt; Sodium Vinylbenzenesulfonate; SSNA; NaSS; Styrenesulfonate Sodium; 4-Ethenylbenzenesulfonic Acid Sodium Salt
EINECS	220-266-3

Quality Control

Our Sodium p-Styrenesulfonate is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, moisture content, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical formulations.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after initial opening to minimize moisture absorption. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Water Content (KF)	≤ 2.0 %
pH (5% aqueous solution)	7.0 - 9.0
Iron (Fe)	≤ 10 ppm
Heavy Metals (as Pb)	≤ 10 ppm

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