Description

4-Styrenesulfonic Acid, Sodium Salt is a versatile, water-soluble monomer widely used in polymer chemistry. Its primary value lies in its ability to impart permanent anionic charge and hydrophilicity to polymers, significantly enhancing their performance in demanding applications. This makes it an essential raw material for manufacturers in the water treatment, coatings, and advanced material sectors seeking to develop products with superior dispersing, anti-static, or ion-exchange properties.

Application

• Polymer Modification: Key monomer for producing sulfonated polystyrene, styrene-acrylic copolymers, and other specialty polymers with enhanced ionic characteristics.
• Dispersants & Superplasticizers: Used in the synthesis of high-performance dispersing agents for pigments, dyes, and cement admixtures.
• Ion-Exchange Resins: Serves as a functional monomer for manufacturing strong acid cation exchange resins used in water purification and chemical processing.
• Hydrogels & Biomedical Materials: Incorporated into hydrogel matrices to improve water absorption, biocompatibility, and functionality for contact lenses, wound dressings, and drug delivery systems.
• Anti-static Agents: Used in coatings and films for electronics packaging and textiles to provide durable anti-static properties.
• Emulsion Polymerization: Acts as a co-monomer or surfactant in emulsion polymerization processes to stabilize particles and modify surface charge.
• Enhanced Oil Recovery (EOR): Component in polymers used for viscosity modification in oilfield flooding operations.
• Paper & Textile Sizing: Improves the strength, dyeability, and processing of paper and textile fibers.

Basic Information

Product Name	4-Styrenesulfonic Acid, Sodium Salt
CAS No.	27457-28-9
Molecular Formula	C8H7NaO3S
Molecular Weight	206.19 g/mol
Synonyms	Sodium 4-Styrenesulfonate; Sodium p-Styrenesulfonate; 4-Vinylbenzenesulfonic Acid Sodium Salt; p-Styrenesulfonic Acid Sodium Salt; Sodium Styrenesulfonate; SSNA; SSNa; Styrene-4-sulfonic acid sodium salt; Vinylbenzenesulfonic acid sodium salt
EINECS	248-445-0

Quality Control

Our 4-Styrenesulfonic Acid, Sodium Salt is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical properties are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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 absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% aqueous solution)	6.0 - 8.5
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets requirement

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