AmberLite IRN77 H

Summary

Product identification

• Product Name: AmberLite™ IRN77 H Ion Exchange Resin
• Product Type: Nuclear-grade, Uniform Particle Size, Gel, Strong Acid Cation Exchange Resin
• Intended Use: Water Treatment Applications in the Nuclear Power Industry
• Previous Name: AmberLite™ IRN77 Ion Exchange Resin

Description

AmberLite™ IRN77 H is a high capacity, 8% DVB cation resin designed for nuclear loops requiring high purity and stability. It is used for cation removal and pH control in primary water treatment. The resin is supplied with a minimum of 99% of its exchange sites in the hydrogen form. Its uniform particle size and lack of fine beads result in lower pressure drop.

Applications

• Primary water treatment:
  • Primary coolant purification
  • Treatment of primary coolant blowdown
  • Control of reactor coolant chemistry (removal of excess ⁷Li, potassium, or ammonium)
• Fuel pool purification in single bed VVER systems
• Rad waste treatment and decontamination (removal of radioactive cations like ¹³⁷Cs and cobalt isotopes)
• PWR steam generation blowdown (APG)

Purity

AmberLite™ IRN Ion Exchange Resins are manufactured to nuclear-grade standards with low inorganic impurities and trace soluble organic compounds. This ensures nuclear systems remain free of contaminants and deposits, preventing increased radioactivity due to impurity activation. IRN resins are suitable for non-regenerable and regenerable single or mixed bed applications where high-quality water and minimal contamination are essential.

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong acid cation
• Functional Group: Sulfonic acid
• Physical Form: Amber, translucent, spherical beads

Chemical Properties

• Ionic Form as Shipped: H⁺
• Total Exchange Capacity: ≥ 1.90 eq/L (H⁺ form)
• Water Retention Capacity: 49.0 – 55.0% (H⁺ form)
• Ionic Conversion (H⁺): ≥ 99%

Particle Size

• Particle Diameter: 650 ± 50 µm
• Uniformity Coefficient: ≤ 1.20
• Fines (< 300 µm): ≤ 0.2%
• < 425 µm: ≤ 5.0%
• > 1180 µm: ≤ 2.0%

Purity (Metals, dry basis)

• Na: ≤ 20 mg/kg
• K: ≤ 20 mg/kg
• Fe: ≤ 20 mg/kg
• Cu: ≤ 5 mg/kg
• Co: ≤ 5 mg/kg
• Ca: ≤ 10 mg/kg
• Mg: ≤ 10 mg/kg
• Al: ≤ 10 mg/kg
• Hg: ≤ 20 mg/kg
• Heavy Metals (as Pb): ≤ 10 mg/kg

Stability

• Whole Uncracked Beads: ≥ 95%
• Friability (Average > 200 g/bead): ≥ 95%
• Solubility in Water: ≤ 0.10%

Density

• Shipping Weight: 800 g/L

Suggested Operating Conditions

• Temperature Range (H⁺ form): 5 – 150°C (41 – 302°F)
• pH Range (Stable): 0 – 14

Hydraulic Characteristics

Estimated bed expansion and pressure drop as a function of backwash/service flowrate and temperature are detailed in Figures 1 and 2 respectively. These figures are valid at the start of the service run with clean water.

• Backwash Expansion (Figure 1): Temperature: 10 – 60°C (50 – 140°F)
• Pressure Drop (Figure 2): Temperature: 10 – 60°C (50 – 140°F)

Product Stewardship

DuPont emphasizes product stewardship, assessing and managing the safety, health, and environmental aspects of its products throughout their lifecycle.

Customer Notice

Customers are urged to review their manufacturing processes and applications to ensure safe and appropriate use of DuPont products. Consult Safety Data Sheets and DuPont personnel for technical support.

WARNING: Oxidizing agents like nitric acid can attack ion exchange resins, potentially causing degradation or violent reactions. Consult knowledgeable sources before using strong oxidizing agents.

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Disclaimer: This extraction may have missed figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror