Description

Amberlite IRN-77 500G is a strongly acidic cation exchange resin supplied in the hydrogen (H+) form. This high-capacity resin is engineered for superior performance in demanding purification and separation processes, offering reliable ion exchange and consistent flow characteristics. It is a critical component for industries requiring high-purity water, metal recovery, and catalysis, where consistent quality and chemical stability are paramount. The product is identified by CAS No. 11128-94-2.

Application

• Ultrapure Water Production: Key component in mixed-bed and polishing demineralization systems for power generation, semiconductor manufacturing, and pharmaceutical water (WFI/PW).
• Hydrometallurgy & Metal Recovery: Selective extraction and concentration of valuable metals like copper, nickel, and rare earth elements from process streams and leach solutions.
• Chemical Process Catalysis: Serves as an acid catalyst in organic synthesis reactions, including esterification, alkylation, and hydrolysis.
• Sugar & Sweetener Processing: Decolorization, deashing, and demineralization of sugar syrups, high-fructose corn syrup (HFCS), and other sweeteners.
• Wastewater Treatment: Removal of heavy metal cations (e.g., lead, cadmium, zinc) and ammonium ions from industrial effluent.
• Pharmaceutical Purification: Purification of active pharmaceutical ingredients (APIs) and intermediates through ion exchange chromatography.
• Condensate Polishing: Removal of cationic impurities from steam condensate return lines in boiler systems to prevent corrosion and scaling.
• Laboratory & Analytical Chemistry: Used in sample preparation, buffer adjustment, and as a stationary phase for ion chromatography.

Basic Information

Item	Detail
Product Name	Amberlite IRN-77 500G
CAS No.	11128-94-2
Molecular Formula	(C8H8)n · (C3H6O3S)m (Polymeric)
Molecular Weight	N/A (Cross-linked polymer)
Synonyms	Strong Acid Cation Exchange Resin (H+ form); Sulfonated Polystyrene-Divinylbenzene Resin; Cation Exchanger IRN-77; Amberlite IR-120 (similar grade); Lewatit S 100; Dowex 50W; Purolite C100; Sodium Polystyrene Sulfonate (related polymer)
EINECS	Contact for details

Quality Control

Every batch of Amberlite IRN-77 is manufactured and tested under a strict quality management system. We ensure the resin meets critical performance parameters such as total exchange capacity, moisture holding capacity, bead size distribution, and uniformity coefficient. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and should be stored in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Ensure the original container is sealed after use to prevent moisture uptake and contamination. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Spherical Beads, Amber to Dark Brown
Ionic Form as Shipped	Hydrogen (H+)
Total Exchange Capacity	≥ 1.8 eq/L (min)
Moisture Holding Capacity	45 - 55%
Particle Size Range (0.3 - 1.2 mm)	≥ 95%
Uniformity Coefficient	≤ 1.7
Reversible Swelling (H+ → Na+)	≤ 10%
Maximum Operating Temperature	120 °C
pH Range	0 - 14

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