AmberLite IRN78 OH

Summary

Product identification

• Product Name: AmberLite™ IRN78 OH Ion Exchange Resin
• Product Type: Nuclear-grade, Uniform Particle Size, Gel, Strong Base Anion Exchange Resin
• Manufacturer: DuPont (Product line: DuPont)
• Previous Name: AmberLite™ IRN78 Ion Exchange Resin

Description

AmberLite™ IRN78 OH is a strong base anion exchange resin specifically designed for nuclear power industry water treatment applications. It is characterized by high purity, exceptional total exchange capacity, and a uniform particle size to minimize pressure drop and facilitate separation in mixed beds with cation resins like AmberLite™ IRN99 H and AmberLite™ IRN97 H. The resin is supplied with a minimum of 95% of exchange sites in the hydroxide (OH⁻) form and a low chloride content to prevent transient chloride levels. High capacity and long resin bed life are critical for reducing radioactive waste disposal costs and volumes in non-regenerable applications.

Applications

• Primary water treatment (coolant purification, blowdown treatment, boron control)
• Fuel pool purification in single bed VVER systems
• Rad waste treatment and decontamination (removal of anionic radioactive material)
• PWR steam generation blowdown (APG)
• BWR condensate polishing

Typical Properties

Physical Properties

• Copolymer: Styrene-divinylbenzene
• Matrix: Gel
• Type: Strong base anion
• Functional Group: Trimethylammonium
• Physical Form: Amber, translucent, spherical beads

Chemical Properties

• Ionic Form as Shipped: OH⁻
• Total Exchange Capacity: ≥ 1.20 eq/L (OH⁻ form)
• Water Retention Capacity: 54.0 – 60.0% (OH⁻ form)
• Ionic Conversion:
  • OH⁻: ≥ 95%
  • CO₃²⁻: ≤ 5%
  • Cl⁻: ≤ 0.05%
  • SO₄²⁻: ≤ 0.1%

Particle Size

• Particle Diameter: 630 ± 50 µm
• Uniformity Coefficient: ≤ 1.10
• Fines:
  • < 300 µm: ≤ 0.2%
  • < 425 µm: ≤ 0.5%
• Oversized: > 1180 µm: ≤ 2.0%

Purity

• Metals (dry basis):
  • Na, K, Fe: ≤ 20 mg/kg
  • Cu, Co: ≤ 5 mg/kg
  • Ca, Mg, Al: ≤ 10 mg/kg
  • Hg: ≤ 20 mg/kg
  • Heavy Metals (as Pb): ≤ 10 mg/kg
• Other (dry basis):
  • Cl: ≤ 250 mg/kg
  • SiO₂: ≤ 10 mg/kg

Stability

• Whole Uncracked Beads: ≥ 95%
• Friability: Average ≥ 600 g/bead
• Resistance to > 200 g/bead: ≥ 95%
• Solubility in Water: ≤ 0.10%

Density

• Shipping Weight: 650 g/L

Suggested Operating Conditions

• Temperature Range (OH⁻ form): 5 – 100°C (41 – 212°F)
• pH Range (Stable): 0 – 14

Note: Operating at temperatures above 60–70°C may impact purity and resin life. Consult a technical representative for details.

Hydraulic Characteristics

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

Product Stewardship

DuPont emphasizes product stewardship to ensure the safe and environmentally sound handling of its products throughout their lifecycle. Customers are encouraged to review their processes and applications to ensure products are used as intended and to consult Safety Data Sheets.

WARNING: Oxidizing agents can attack ion exchange resins, potentially leading to hazardous reactions. Consult knowledgeable sources before using strong oxidizing agents.

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Disclaimer: This extracted summary may not include all figures, footnotes, or revisions. Contractual data must be confirmed against the specific OEM PDF revision used for the project.

Official datasheet (PDF)

Lenntech datasheet mirror