Description

Styrene, Divinylbenzene Copolymer, Sulphonated CAS NO 68037-28-5 is a synthetic, macroporous ion exchange resin in its hydrogen (acid) form. This material is engineered for high capacity and chemical stability, making it a critical component in demanding separation and purification processes. It is essential for industries requiring robust and reliable ion exchange media for applications ranging from water treatment to catalysis and pharmaceutical purification.

Application

• Industrial Water Demineralization & Softening: Key component in mixed-bed and polishing units for producing high-purity water for power generation, electronics, and pharmaceuticals.
• Catalysis & Organic Synthesis: Serves as a solid acid catalyst in esterification, alkylation, and other acid-catalyzed reactions, offering advantages in separation and reusability.
• Sugar & Sweetener Processing: Used for decolorization, deashing, and inversion in the refining of sugar syrups, high-fructose corn syrup, and other sweeteners.
• Pharmaceutical Purification: Employed in the purification and isolation of active pharmaceutical ingredients (APIs), antibiotics, and other fine chemicals.
• Chemical Recovery & Waste Treatment: Effective for recovering valuable metals from process streams and treating industrial wastewater by removing cationic contaminants.
• Hydrometallurgy: Used in the extraction and purification of metals like uranium, rare earth elements, and platinum group metals from leach solutions.

Basic Information

Product Name	Styrene, Divinylbenzene Copolymer, Sulphonated
CAS No.	68037-28-5
Molecular Formula	(C8H8·C10H10)n·xSO3H
Molecular Weight	Contact for details
Synonyms	Sulfonated Styrene-Divinylbenzene Copolymer; Polystyrene Sulfonic Acid; Cation Exchange Resin (H+ form); Strong Acid Cation Exchanger; Macroporous Sulfonic Acid Resin; SAC Resin; Amberlyst-type Resin; Dowex-type Resin
EINECS	Contact for details

Quality Control

Our Styrene, Divinylbenzene Copolymer, Sulphonated is manufactured under a stringent quality management system. Each batch is tested to ensure consistent performance characteristics such as exchange capacity, moisture holding capacity, particle size distribution, and chemical stability. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture uptake and caking. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to brown spherical beads
Ionic Form (as shipped)	Hydrogen (H+)
Total Exchange Capacity	≥ 4.2 meq/g (dry H+ form)
Moisture Holding Capacity	45 - 55%
Particle Size Range	0.3 - 1.2 mm
Uniformity Coefficient	≤ 1.7
Specific Gravity	1.2 - 1.3
Maximum Operating Temperature	120 °C
pH Range (Stability)	0 - 14

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