AmberLite HPR550 OH

Summary

Product identification

• Product Name: AmberLite™ HPR550 OH Ion Exchange Resin
• Type: Uniform Particle Size, Gel, Strong Base Anion Exchange Resin
• Intended Applications: Condensate Polishing and Mixed Bed Demineralization for the Power Industry. Specifically noted for nuclear condensate polishing mixed beds requiring high resin purity and water quality.
• Historical Reference: Previously sold as DOWEX MONOSPHERE™ 550A (OH) Ion Exchange Resin.

Applications

• Mixed bed condensate polishing in PWR nuclear power plants
• Mixed bed condensate polishing in fossil power plants
• Mixed bed polishing in industrial demineralization
• Demineralization, especially when treating water with:
  • High percentage of silica
  • Treatment goal of removing strong and weak acids
  • Goal of lowest silica leakage
• Single bed industrial demineralization requiring high water purity

Resin Pairings

• Recommended: AmberLite™ HPR650 H Ion Exchange Resin (gel)
• Additional Options:
  • AmberLite™ HPR1600 H Ion Exchange Resin (gel)
  • AmberLite™ HPR2000 H Ion Exchange Resin (macroporous) – for external regeneration systems

Typical Properties

Physical Properties

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

Chemical Properties

• Ionic Form as Shipped: OH⁻
• Total Exchange Capacity: ≥ 1.1 eq/L (OH⁻ form)
• Water Retention Capacity: 55.0 – 65.0% (OH⁻ form)
• Ionic Conversion:
  • OH⁻: ≥ 95%
  • CO₃²⁻: ≤ 5%
  • Cl⁻: ≤ 0.5%

Particle Size

• Particle Diameter: 590 ± 50 µm
• Uniformity Coefficient: ≤ 1.10
• Fines (< 300 µm): ≤ 0.5%
• Oversized (> 850 µm): ≤ 1.0%
• For additional particle size information, please refer to the Particle Size Distribution Cross Reference Chart (Form No. 45-D00954-en).

Purity (Metals, dry basis)

• Na: ≤ 50 mg/kg
• K: ≤ 50 mg/kg
• Fe: ≤ 50 mg/kg
• Cu: ≤ 10 mg/kg
• Ca: ≤ 50 mg/kg
• Mg: ≤ 50 mg/kg
• Al: ≤ 50 mg/kg
• Heavy Metals (as Pb): ≤ 10 mg/kg

Stability

• Whole Uncracked Beads: ≥ 95%
• Friability: Average ≥ 350 g/bead (Threshold > 200 g/bead)

Swelling

• Cl⁻ → OH⁻: ≤ 25%

Density

• Particle Density: 1.08 g/mL
• Shipping Weight: 660 g/L

Suggested Operating Conditions

• Temperature Range (OH⁻ form): 5 – 100°C (41 – 212°F)
  • Note: Operating at elevated temperatures (e.g., above 60 – 70°C) may impact loop purity and resin life. Contact technical representative for details.
• pH Range (Stable): 0 – 14

For information on recommended minimum bed depth, operating conditions, and regeneration conditions for mixed beds or separate beds, please refer to Tech Facts (Form No. 45-D01127-en and Form No. 45-D01131-en).

Hydraulic Characteristics

Estimated bed expansion and pressure drop curves as a function of backwash flowrate and service flowrate, respectively, are provided in figures within the original document. These estimations are valid at the start of the service run with clean water and are shown for temperatures between 10 – 60°C (50 – 140°F).

Product Stewardship

DuPont emphasizes product stewardship to assess safety, health, and environmental information for its products and take appropriate steps to protect health and the environment.

Customer Notice

Customers are encouraged to review their manufacturing processes and applications of DuPont products for human health and environmental quality. DuPont personnel are available for questions and technical support. Consult Safety Data Sheets before use.

WARNING: Oxidizing agents such as nitric acid can attack organic ion exchange resins, potentially leading to degradation or violent reactions. Consult knowledgeable sources before using strong oxidizing agents.

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

Official datasheet (PDF)

Lenntech datasheet mirror