Description

Sulfonated Polystyrene, Zinc Salt is an ion-exchange resin where the sulfonic acid groups of polystyrene are neutralized with zinc cations. This material is valued for its selective ion-exchange capabilities, thermal stability, and role as a solid acid catalyst or functional additive. It is primarily utilized in water treatment, catalysis, and as a modifying agent in polymer composites and specialty coatings. The product is commercially available under various grades to meet specific industrial requirements.

Application

• Water Treatment & Softening: Used as a selective cation-exchange resin for removing heavy metal ions (e.g., lead, copper) from industrial wastewater and process streams.
• Heterogeneous Catalysis: Serves as a solid acid catalyst in organic synthesis reactions, including esterification, alkylation, and condensation, offering easy separation and reusability.
• Polymer Modification: Incorporated as a functional additive to enhance the ionic conductivity, mechanical properties, or flame retardancy of polymer blends and composites.
• Analytical Chemistry: Employed in chromatographic separation techniques and as a stationary phase for ion-exchange chromatography.
• Specialty Coatings & Adhesives: Acts as a cross-linking agent or rheology modifier to improve the performance of coatings, inks, and adhesive formulations.
• Pharmaceutical Intermediates: Utilized in purification processes or as a catalyst in the synthesis of certain pharmaceutical intermediates.

Basic Information

Product Name	Sulfonated Polystyrene, Zinc Salt
CAS No.	52808-30-7
Molecular Formula	(C8H7SO3)nZn
Molecular Weight	Variable (Polymer)
Synonyms	Polystyrene sulfonate zinc salt; Zinc polystyrene sulfonate; Zinc poly(styrenesulfonate); Zinc PSS; Polystyrene sulfonic acid zinc salt; Zinc salt of sulfonated polystyrene; Ion exchange resin, zinc form; Zinc-loaded cation exchanger
EINECS	Contact for details

Quality Control

Our Sulfonated Polystyrene, Zinc Salt is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including ion-exchange capacity, zinc content, moisture level, particle size distribution, and purity. Certificates of Analysis (COA) documenting these results are provided to ensure compliance with your specifications and industry standards.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Off-white to pale yellow beads or powder
Identification (IR)	Conforms
Ion Exchange Capacity	≥ 4.0 meq/g (dry)
Zinc Content	10 - 15 % (w/w)
Moisture Content	≤ 5.0 %
Particle Size (Mesh)	20 - 50 (or as per grade)
pH (in slurry)	5.0 - 7.0

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