High-Capacity Dupont AmberTec™ UP550 OH Ion Exchange Resin For Use In Regenerable Mixed Beds
High-Capacity AmberTec™ UP550 OH Ion Exchange Resin For Use In Regenerable Mixed Beds
Product Overview
AmberTec™ UP550 OH is a premium-quality, high-capacity, uniform particle size strong base anion exchange resin designed for regenerable mixed beds in applications requiring the highest resin purity and water quality, particularly in the semiconductor industry.
Its small average particle size ensures exceptional bead integrity and rapid exchange kinetics, making it ideal for high-flow mixed bed systems. The resin's light color and uniform size are tailored to complement the larger, denser AmberTec™ UP650 H cation resin, enabling easy visual confirmation of separation after backwash. Together, this resin pairing offers outstanding separation performance, excellent water quality, and high purity, establishing it as a premium choice in the semiconductor industry.
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
Historical Reference:
Previously sold as DOWEX MONOSPHERE™ 550A UPW (OH) Ion Exchange Resin.
Typical Properties
Physical Properties:
| Property |
Specification |
| Copolymer |
Styrene-divinylbenzene |
| Matrix |
Gel |
| Type |
Strong base anion |
| Functional Group |
Trimethylammonium |
| Physical Form |
White to yellow translucent spherical beads |
Chemical Properties:
| Property |
Specification |
| 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% |
| Ionic Conversion (CO₃ ²⁻) |
≤ 5% |
| Ionic Conversion (Cl⁻) |
≤ 0.5% |
Particle Size Distribution:
| Parameter |
Specification |
| Particle Diameter |
590 ± 50 μm |
| Uniformity Coefficient |
≤ 1.10 |
| < 300 μm |
≤ 0.5% |
| > 850 μm |
≤ 1.0% |
For additional particle size information, refer to Document No.: 45-D00954-en.
Purity (Metals, Dry Basis):
| Element |
Specification |
| Na |
≤ 25 mg/kg |
| Fe |
≤ 25 mg/kg |
| Cu |
≤ 15 mg/kg |
| Al |
≤ 15 mg/kg |
Mechanical Stability:
| Parameter |
Specification |
| Whole Uncracked Beads |
≥ 95% |
| Friability (Average) |
≥ 350 g/bead |
| > 200 g/bead |
≥ 95% |
Density:
Operating Conditions
- Temperature Range: 5 - 60°C (41 - 140°F)
- pH Range (Stable): 0 - 14
Operation at elevated temperatures (e.g., >60-70°C) may impact system purity and resin life. Consult DuPont technical representatives for details.
Hydraulic and Rinse Properties
- Backwash Expansion: Estimated bed expansion as a function of backwash flow rate and temperature is provided in Figure 1 (refer to original document).
- Pressure Drop: Estimated pressure drop as a function of service flow rate and temperature is shown in Figure 2.
- Rinse Performance: Typical single-bed rinse-down curves for conductivity and TOC (to ΔTOC = 2 ppb) as a function of rinse volume are shown in Figure 3.
Product Stewardship and Safety
WARNING: Strong oxidizing agents (e.g., nitric acid) may attack the resin under certain conditions, leading to degradation or violent reactions. Consult professionals before use.
- Users should review manufacturing processes and applications from health, safety, and environmental perspectives.
- Refer to the latest Safety Data Sheet (SDS) before use and ensure compliance with local regulations.
