AmberTec UP550 OH

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
• Previous Name: DOWEX MONOSPHERE™ 550A UPW (OH) Ion Exchange Resin

Description

AmberTec™ UP550 OH is a high-capacity, uniform particle size resin designed for regenerable mixed beds requiring high resin purity and water quality. Its small average particle size ensures exceptional bead integrity and rapid exchange kinetics, suitable for high flowrate demands in mixed bed systems. The uniform bead size and light color are designed to complement AmberTec™ UP650 H Ion Exchange Resin, facilitating visual confirmation of separation after backwashing.

Applications

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

Resin Pairings

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

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%
• Larger 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
  • Minimum: > 200 g/bead
  • Overall: ≥ 95%

Density

• Shipping Weight: 660 g/L

Suggested Operating Conditions

• Temperature Range (OH⁻-form): 5 – 60°C (41 – 140°F)
• pH Range (Stable): 0 – 14
• Operating at elevated temperatures (above 60 – 70°C) may impact loop purity and resin life.

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 processed for the purest treated water quality in 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 (in bed volumes) are shown in Figure 3.

• Figure 3: Conductivity and TOC Rinse-down

Product Stewardship

DuPont is committed to product stewardship, assessing the safety, health, and environmental information of its products and taking appropriate steps to protect people and the environment.

Customer Notice

Customers are encouraged to review their manufacturing processes and applications of DuPont products to ensure they are used appropriately and in compliance with health and environmental quality standards. Safety Data Sheets should be consulted prior to use.

WARNING: Oxidizing agents such as nitric acid can attack organic ion exchange resins, potentially causing 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