Description

4-Styrenesulfonic Acid, Sodium Salt Hydrate is a versatile, water-soluble monomer widely used in polymer chemistry. This compound is valued for its ability to impart permanent anionic charge and hydrophilicity to polymeric materials, significantly enhancing their performance characteristics. 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 properties and stability.

Application

• Ion-Exchange Resins & Membranes: A key monomer for manufacturing strong acid cation exchange resins and membranes used in water purification, demineralization, and electrochemical applications.
• Dispersants & Stabilizers: Used in the synthesis of polymeric dispersants for pigments, dyes, and inorganic particles in coatings, inks, and ceramic processing.
• Hydrogel Production: Serves as a co-monomer to create superabsorbent polymers and hydrogels with high water retention capacity for medical, agricultural, and personal care products.
• Conductive Polymers: Employed in the development of polyelectrolytes and conductive polymer composites for batteries, sensors, and antistatic coatings.
• Textile & Paper Chemicals: Used to produce sizing agents, dyeing auxiliaries, and wet-strength resins that improve fiber processing and final product quality.
• Enhanced Oil Recovery (EOR): A component in polymers designed to modify the viscosity of injection water to improve oil displacement in reservoir formations.

Basic Information

Product Name	4-Styrenesulfonic Acid, Sodium Salt Hydrate
CAS No.	123333-94-8
Molecular Formula	C8H7NaO3S · xH2O
Molecular Weight	206.19 (Anhydrous basis)
Synonyms	Sodium 4-vinylbenzenesulfonate hydrate; Sodium p-styrenesulfonate hydrate; 4-Ethenylbenzenesulfonic acid sodium salt hydrate; Styrene-4-sulfonic acid sodium salt; SSNA; SPS; Vinylbenzenesulfonic acid sodium salt; 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. Each batch is tested to ensure consistent purity, identity, and performance, with specifications tailored to meet the demands of polymerization processes. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and 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). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water Content (KF)	≤ 5.0%
pH (5% Solution)	6.0 - 8.5
Heavy Metals (as Pb)	≤ 10 ppm

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