AmberTec UP550 OH PDS

Summary

Product Identification

• Product Name: AmberTec™ UP550 OH Ion Exchange Resin
• Type: Uniform Particle Size, Gel, Strong Base Anion Exchange Resin
• Intended Use: Single Bed and Mixed Bed Demineralization Applications for the Semiconductor Industry
• Historical Reference: Previously sold as DOWEX MONOSPHERE™ 550A UPW (OH) Ion Exchange Resin

Description

AmberTec™ UP550 OH Ion Exchange Resin is a premium-quality, high-capacity, uniform particle size resin designed specifically for use in regenerable mixed beds when highest resin purity and water quality are required. It provides exceptional bead integrity and rapid exchange kinetics due to its small average particle size, making it ideally suited to high flowrate demands in mixed bed systems. Its bead uniformity and distinguishable light color are tailored to complement AmberTec™ UP650 H Ion Exchange Resin, allowing for easy visual confirmation of separation in mixed beds.

Resin Pairings

• Recommended Pairing: AmberTec™ UP650 H Ion Exchange Resin (gel)

Applications

• Regenerable, single beds after reverse osmosis
• Regenerable, primary mixed beds after reverse osmosis
• Regenerable, polishing mixed beds
• Non-regenerable, polishing mixed beds

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
• Finer than 300 µm: ≤ 0.5%
• Coarser than 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: ≤ 25 mg/kg
  • Fe: ≤ 25 mg/kg
  • Cu: ≤ 15 mg/kg
  • Al: ≤ 15 mg/kg

Stability

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

Density

• Shipping Weight: 660 g/L

Suggested Operating Conditions

• Temperature Range (OH⁻ form): 5 – 60°C (41 – 140°F)
  • Operating at elevated temperatures, for example above 60 – 70°C (140 – 158°F), may impact the purity of the loop and resin life. Contact our technical representative for details.
• pH Range (Stable): 0 – 14

Hydraulic Characteristics

Estimated bed expansion as a function of backwash flowrate and temperature is shown in Figure 1. Estimated pressure drop as a function of service flowrate and temperature is shown in Figure 2. These pressure drop expectations are valid at the start of the service run with clean water.

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

UPW Rinse Properties

AmberTec™ UP Ion Exchange Resins are specially processed to ensure the purest treated water quality for semiconductor applications. Typical single bed rinse-down curves for conductivity and total organic carbon (TOC) to ΔTOC = 2 ppb as a function of rinse volume are shown in Figure 3.

• Figure 3: Conductivity and TOC Rinse-down

Product Stewardship

DuPont has a fundamental concern for all who make, distribute, and use its products, and for the environment. This concern is the basis for its product stewardship philosophy.

Customer Notice

DuPont encourages customers to review their manufacturing processes and applications of DuPont products from the standpoint of human health and environmental quality.

WARNING: Oxidizing agents such as nitric acid attack organic ion exchange resins under certain conditions. This could lead to anything from slight resin degradation to a violent exothermic reaction (explosion). Consult knowledgeable sources before using strong oxidizing agents.

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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