Description

Amberlite IRA-404 is a strongly basic, Type I anion exchange resin supplied in the chloride form, widely recognized for its high capacity and robust performance in demanding purification processes. Its primary value lies in its exceptional selectivity for anions, particularly in the removal of dissolved salts, organic acids, and color bodies from process streams. This resin is essential for industries requiring high-purity water and efficient separation, such as power generation, pharmaceuticals, and chemical processing. The product is also known under the identifier CAS 149146-26-9.

Application

• Demineralization & Deionization: Key component in mixed-bed and separate-bed systems for producing high-purity water for power plants, laboratories, and microelectronics.
• Organic Acid Removal: Effective in the purification and recovery of organic acids from fermentation broths and chemical reaction mixtures.
• Sugar & Sweetener Decolorization: Used in the refining process of sugar, corn syrup, and other sweeteners to adsorb colorants and ionic impurities.
• Condensate Polishing: Critical for removing ionic contaminants from steam condensate return in industrial boiler systems to prevent corrosion and scaling.
• Chemical Processing: Separation and purification of various inorganic and organic anions in specialty chemical manufacturing.
• Nitrate & Perchlorate Removal: Applied in water treatment for the selective removal of specific problematic anions from drinking water sources.

Basic Information

Product Name	Amberlite IRA-404
CAS No.	149146-26-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	IRA-404; Amberlite IRA 404; Strong Base Anion Exchange Resin Type I; Polystyrene-divinylbenzene anion exchanger; Quaternary ammonium anion resin; Anion exchange resin (chloride form); Dowex 1 (similar type); Type I SBA resin
EINECS	Contact for details

Quality Control

Our Amberlite IRA-404 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested against critical parameters including total exchange capacity, moisture content, bead size distribution, and chloride form conversion. A Certificate of Analysis (COA) documenting these specifications is provided with every shipment 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 freeze or dry out, as this can cause physical damage to the beads and reduce performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, amber to dark brown
Ionic Form (as shipped)	Chloride (Cl-)
Total Exchange Capacity	≥ 1.0 eq/L (min)
Moisture Holding Capacity	40 - 50%
Particle Size Range (US Mesh)	16 - 50
Uniformity Coefficient	≤ 1.7
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.