Description

Dowex(R) Sbr-C Chloride Form is a strongly basic anion exchange resin supplied in the chloride form, designed for high-performance separation and purification processes. This product is essential for applications requiring the selective removal or exchange of anions from aqueous and mixed solvent streams. It is particularly valuable for industries such as pharmaceuticals, power generation, and chemical processing where consistent purity and reliable ion exchange capacity are critical. Its robust macroreticular structure provides excellent physical stability and resistance to organic fouling.

Application

• Water Deionization & Purification: Used in mixed-bed and separate-bed systems for producing high-purity water for laboratory, pharmaceutical, and power plant applications.
• Chemical Processing: For catalyst recovery, decolorization, and the removal of acidic impurities from process streams.
• Sugar & Sweetener Refining: Employed in decolorization and demineralization steps to improve product quality and yield.
• Hydrometallurgy: For the recovery and separation of valuable metals from leach solutions.
• Pharmaceutical Intermediates: Purification and isolation of active pharmaceutical ingredients (APIs) and intermediates through anion exchange chromatography.
• Condensate Polishing: Critical in power plants to remove ionic contaminants from boiler feedwater and condensate.
• Analytical Chemistry: Serves as a stationary phase for ion chromatography and sample preparation.

Basic Information

Product Name	Dowex(R) Sbr-C Chloride Form
CAS No.	121181-80-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Dowex SBR-C (Cl- form); Strongly Basic Anion Exchange Resin Type I; Polystyrene-divinylbenzene anion exchanger; Quaternary ammonium anion resin; Amberlite IRA-400 (analog); Anion exchange resin (chloride form); Styrenic strong base anion resin
EINECS	Contact for details

Quality Control

Our Dowex(R) Sbr-C Chloride Form is manufactured under a stringent quality management system. Each batch is tested to ensure it meets critical performance parameters such as total exchange capacity, moisture holding capacity, and bead size distribution. Certificates of Analysis (COA) documenting these specifications are available upon request. Our quality commitment supports compliance with relevant cGMP and ISO 9001 standards for industrial and fine chemical applications.

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); ensure the original container is securely sealed after each use to prevent moisture uptake, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, amber to brown
Ionic Form	Chloride (Cl-)
Total Exchange Capacity	≥ 1.0 meq/mL (min)
Moisture Holding Capacity	50 - 60%
Particle Size Range	16 - 50 mesh (US Standard)
Uniformity Coefficient	≤ 1.7
Reversible Swelling (Cl- → OH-)	~20%
Maximum Operating Temperature	60°C (OH- form), 100°C (Cl- form)

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