Description

4-Styrenesulfonic Acid, Sodium Salt Hydrate is a versatile, water-soluble monomer and anionic polyelectrolyte precursor. This compound is essential for imparting permanent negative charge and hydrophilicity to polymers, significantly enhancing their performance in demanding environments. It is a critical raw material for manufacturers in the water treatment, specialty coatings, and advanced material science industries seeking to develop products with superior ionic conductivity, anti-fouling properties, and dispersion stability.

Application

• Ion-Exchange Resins & Membranes: Key monomer for producing strong acid cation exchange resins used in water softening, demineralization, and chromatographic separation.
• Dispersants & Stabilizers: Serves as a building block for polyelectrolytes that act as effective dispersants for pigments, clays, and carbon black in coatings and construction materials.
• Hydrogels & Biomedical Polymers: Used to synthesize superabsorbent polymers and hydrogels with high water retention for medical, agricultural, and personal care applications.
• Conductive Polymers: Incorporated into polymer matrices like PEDOT:PSS to enhance electrical conductivity for antistatic coatings, transparent electrodes, and organic electronics.
• Textile & Fiber Modification: Imparts dyeability, antistatic properties, and moisture management to synthetic fibers and fabrics.
• Enhanced Oil Recovery (EOR): Component in polymers used for viscosity modification and mobility control in oilfield flooding operations.
• Paper Sizing & Retention Aids: Improves strength, printability, and filler retention in paper manufacturing processes.
• Adhesives & Sealants: Modifies rheology and improves the water resistance and adhesion properties of various adhesive formulations.

Basic Information

Item	Details
Product Name	4-Styrenesulfonic Acid, Sodium Salt Hydrate
CAS No.	304675-74-9
Molecular Formula	C8H7NaO3S · xH2O
Molecular Weight	206.19 (Anhydrous basis)
Synonyms	Sodium 4-Styrenesulfonate Hydrate; Sodium p-Styrenesulfonate Hydrate; 4-Vinylbenzenesulfonic Acid Sodium Salt Hydrate; Styrene-4-sulfonic Acid Sodium Salt Hydrate; SSNA; SSNa; NaSS; p-Styrenesulfonic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our 4-Styrenesulfonic Acid, Sodium Salt Hydrate is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure consistency, purity, and performance for your polymerization processes. A detailed Certificate of Analysis (COA) documenting assay, impurity profile, and physical specifications is provided with each shipment to guarantee compliance with your technical 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); the original container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water Content (KF)	Contact for details
pH (5% Solution)	Contact for details
Heavy Metals (as Pb)	< 10 ppm

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