Description

Dowex 1X8 Chloride Form is a strongly basic anion exchange resin supplied in its chloride form, widely recognized for its high capacity and excellent chemical stability. This product is essential for the selective removal and purification of anionic species from aqueous and mixed solvent streams. It is a critical component for industries requiring high-purity water, metal recovery, and the separation of valuable compounds, serving sectors such as pharmaceuticals, power generation, hydrometallurgy, and fine chemical synthesis.

Application

• Water Deionization & Purification: Key component in mixed-bed and separate-bed systems for producing high-purity water for laboratory, pharmaceutical, and power plant applications.
• Chemical & Pharmaceutical Processing: Used for the purification of intermediates, catalysts, and active pharmaceutical ingredients (APIs) by removing anionic impurities.
• Hydrometallurgy & Metal Recovery: Effective for the selective adsorption and concentration of precious and base metal complexes, such as gold cyanide or platinum group metal chlorides, from process solutions.
• Sugar & Sweetener Decolorization: Employed in the refining process to remove color bodies and organic acids from sugar syrups and other sweetener solutions.
• Analytical Chemistry & Chromatography: Serves as a stationary phase for ion chromatography and sample preparation techniques requiring anion separation.
• Catalysis & Organic Synthesis: Can be used as a solid-supported catalyst or reagent in various organic transformations.
• Nuclear Industry: Applied in the treatment of low-level radioactive waste streams for the removal of specific radioactive anions.
• Environmental Remediation: Utilized in wastewater treatment to extract harmful anions like nitrate, perchlorate, or chromate.

Basic Information

Item	Details
Product Name	Dowex 1X8 Chloride Form
CAS No.	69011-19-4
Molecular Formula	Not applicable (Polymeric resin)
Molecular Weight	Not applicable (Polymeric resin)
Synonyms	Dowex 1-X8; Amberlite IRA-400 (Cl form); Strongly Basic Anion Exchange Resin Type I; Polystyrene-divinylbenzene trimethylbenzylammonium chloride; Anion exchange resin (chloride form); Ion exchange resin 1X8; IRA-400 Cl; Anion exchanger Type 1
EINECS	Contact for details

Quality Control

Our Dowex 1X8 Chloride Form is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance characteristics such as total exchange capacity, moisture holding capacity, particle size distribution, and chloride form uniformity. Certificates of Analysis (COA) documenting these key 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). The resin is supplied moist; it must not be allowed to dry out, as this can cause irreversible damage to the polymer matrix. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, amber to brown
Ionic Form (as shipped)	Chloride (Cl⁻)
Matrix	Polystyrene crosslinked with divinylbenzene
Functional Group	Trimethylbenzylammonium (Type I)
Total Exchange Capacity	≥ 1.0 meq/mL (min.)
Moisture Content	40 - 60 %
Particle Size Range (Standard Grade)	0.3 - 1.2 mm
Uniformity Coefficient	≤ 1.7
Reversible Swelling (Cl⁻ → OH⁻)	~20% volume increase
Maximum Operating Temperature	60°C (OH⁻ form), 100°C (Cl⁻ form)
pH Range (Stable)	0 - 14

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