Description

Styrene, Divinylbenzene Polymer, Sulfonated, Ammonium Salt is a synthetic ion exchange resin in its ammonium form, characterized by its sulfonic acid functional groups. This material is engineered for high-performance applications requiring robust cation exchange capacity and chemical stability. It is a critical component for industrial processes in water treatment, chemical purification, and catalysis, serving sectors where precise separation and purification are paramount.

Application

• Water Purification & Demineralization: Used in mixed-bed and cation exchange columns for producing high-purity deionized water in power generation, electronics manufacturing, and laboratory settings.
• Chemical & Pharmaceutical Processing: Employed as a catalyst or purification agent in organic synthesis, pharmaceutical intermediate purification, and sugar decolorization.
• Hydrometallurgy & Metal Recovery: Facilitates the selective recovery and concentration of valuable metal ions, such as rare earth elements, from process streams and mining leachates.
• Food & Beverage Industry: Applied in the softening of process water, decalcification, and the removal of metal ions to improve product quality and stability.
• Nuclear Industry: Utilized for the removal of radioactive cations from coolant water and in the treatment of low-level liquid radioactive waste.
• Analytical Chemistry: Serves as a stationary phase in ion chromatography for the separation and analysis of cationic species.

Basic Information

Product Name	Styrene, Divinylbenzene Polymer, Sulfonated, Ammonium Salt
CAS No.	72828-15-0
Molecular Formula	(C8H8·C10H10)n·C3H9NO3S
Molecular Weight	Contact for details
Synonyms	Ammonium Polystyrene Sulfonate; Sulfonated Polystyrene Divinylbenzene Ammonium Salt; Cation Exchange Resin (Ammonium Form); Polystyrene Sulfonic Acid Ammonium Salt; Ammonium PSS; Amberlite IR-120 (NH4+ form); Dowex 50WX8 (NH4+ form); Lewatit S 100 (NH4+ form)
EINECS	Contact for details

Quality Control

Our ion exchange resins are manufactured under a strict quality management system. Each batch is tested to ensure consistent performance metrics, including total exchange capacity, moisture holding capacity, particle size distribution, and uniformity coefficient. Certificates of Analysis (COA) detailing these parameters are provided with every shipment. We can support compliance with various industry standards, including those for pharmaceutical (USP) and food contact applications, upon request.

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 sealed to prevent moisture uptake, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, light brown to amber
Ionic Form	Ammonium (NH4+)
Total Exchange Capacity	≥ 1.8 meq/mL (H+ form)
Moisture Content	45 - 55 %
Particle Size Range	0.3 - 1.2 mm
Uniformity Coefficient	≤ 1.7
Maximum Operating Temperature	120 °C
pH Range	0 - 14

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