Description

Polystyrene, Crosslinked, Quaternary Ammonium, Chloride Form is a strongly basic anion exchange resin in its chloride form, featuring a crosslinked polystyrene matrix functionalized with quaternary ammonium groups. This material is essential for applications requiring the selective removal or exchange of anions from aqueous and non-aqueous solutions. It is a critical component for industries focused on purification, catalysis, and analytical separation processes, where consistent performance and high capacity are paramount.

Application

• Water Purification & Demineralization: Key component in mixed-bed and separate-bed deionization systems for producing high-purity water in power generation, pharmaceuticals, and microelectronics.
• Chemical Processing & Catalysis: Serves as a catalyst or catalyst support in various organic synthesis reactions, including esterification and alkylation.
• Pharmaceutical Purification: Used in the purification of active pharmaceutical ingredients (APIs), antibiotics, and other fine chemicals by removing anionic impurities.
• Sugar & Sweetener Refining: Employed in decolorization and demineralization processes within the food industry to purify sugar syrups and other sweeteners.
• Hydrometallurgy & Metal Recovery: Facilitates the selective recovery and separation of precious or heavy metal anions from process streams and waste solutions.
• Analytical Chromatography: Acts as a stationary phase in ion-exchange chromatography columns for the analysis and separation of anions in research and quality control laboratories.

Basic Information

Product Name	Polystyrene, Crosslinked, Quaternary Ammonium, Chloride Form
CAS No.	63181-94-2
Molecular Formula	(C8H8·C2H8NCl)n (Representative)
Molecular Weight	N/A (Crosslinked Polymer)
Synonyms	Strongly Basic Anion Exchange Resin (Type I); Quaternary Ammonium Polystyrene Resin (Chloride Form); Amberlite IRA-400 (Cl- form); Dowex 1X8 (Cl- form); Anion Exchange Resin (Polystyrene Matrix); Polystyrylmethyltrimethylammonium Chloride; Styrene-DVB quaternary ammonium resin; Gel-type strong base anion exchanger
EINECS	Contact for details

Quality Control

Every batch of our strong base anion exchange resin is manufactured and tested under a stringent quality management system. We ensure compliance with relevant industry standards for ion exchange materials. Key parameters such as total exchange capacity, moisture content, particle size distribution, and chloride form purity are rigorously verified. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and performance consistency.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed when not in use to prevent moisture uptake, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, pale yellow to amber
Ionic Form	Chloride (Cl-)
Total Exchange Capacity	≥ 1.0 meq/mL (min)
Moisture Holding Capacity	40 - 60 %
Particle Size Range	0.3 - 1.2 mm (Standard Grade)
Uniformity Coefficient	≤ 1.7
Identification (IR)	Conforms to structure

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