Description

Benzene, Diethenyl-, Polymer With Ethenylbenzene, Sulfonated, Calcium Salts is a synthetic, cross-linked polymer resin in its calcium salt form, known for its ion-exchange and chelating properties. This material is critical for applications requiring selective binding or removal of specific ions from aqueous solutions. It is primarily utilized by industries involved in water treatment, chemical purification, and catalysis.

Application

• Water Softening & Demineralization: Used as a cation-exchange resin in industrial water treatment systems to remove calcium, magnesium, and other hardness ions.
• Chemical Process Catalysis: Serves as a solid acid catalyst or catalyst support in various organic synthesis reactions.
• Metal Ion Recovery & Separation: Employed in hydrometallurgy for the selective extraction and purification of valuable metals from process streams.
• Pharmaceutical Purification: Acts as an ion-exchange medium in the purification steps of active pharmaceutical ingredients (APIs) and intermediates.
• Sugar & Sweetener Processing: Utilized for decolorization and demineralization in the refining of sugar and high-fructose corn syrup.
• Wastewater Treatment: Applied in effluent treatment to remove heavy metal contaminants and comply with environmental discharge regulations.

Basic Information

Item	Detail
Product Name	Benzene, Diethenyl-, Polymer With Ethenylbenzene, Sulfonated, Calcium Salts
CAS No.	68441-32-7
Molecular Formula	(C10H10 · C8H8)x · (C3H6O3S)yCaz
Molecular Weight	Polymer - varies by cross-linking degree and sulfonation level
Synonyms	Sulfonated Styrene-Divinylbenzene Copolymer, Calcium Form; Calcium Polystyrene Sulfonate; Cation Exchange Resin, Calcium Salt; DVB-Styrene Sulfonic Acid Copolymer Calcium Salt; Ion Exchange Resin Ca2+ Form; Cross-linked Polystyrene Sulfonate Calcium; Dowex Ca Form; Amberlite IRC Calcium
EINECS	Contact for details

Quality Control

Our ion-exchange resins are manufactured under a strict quality management system. Each batch is tested for critical parameters including ion-exchange capacity, moisture content, particle size distribution, and chemical stability. Certificates of Analysis (COA) detailing these specifications are available upon request to ensure they meet your process requirements.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place at room temperature (15-25°C). Ensure the storage area is well-ventilated and away from incompatible materials. Keep the container sealed when not in use to prevent moisture uptake and degradation of performance.

Specification

Item	Specification
Appearance	Light brown to amber beads
Ion-Form	Calcium (Ca2+)
Moisture Content	45 - 55 %
Total Exchange Capacity	≥ 4.2 meq/g (dry)
Particle Size Range	0.3 - 1.2 mm
Uniformity Coefficient	≤ 1.7
pH Range (Stability)	0 - 14
Maximum Operating Temperature	120 °C

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