AmberLite ESR-1

Summary

Product identification

• Product Name: DuPont™ AmberLite™ ESR-1 Resin
• Type: Ion Exchange Resin, macroporous, anionic
• Functional Group: Amines
• Intended Use: Enzyme carrier for the food and beverage industry, for immobilizing enzymes for heterogeneous catalysis. Suitable for high molecular weight enzymes such as glucose isomerase.
• Key Applications: Enzyme immobilization, Sweetener processing involving Glucose Isomerase, or Allulose Epimerase immobilization.

Typical Properties

Physical Properties

• Copolymer: Crosslinked polystyrene
• Matrix: Macroporous
• Physical Form: White to yellow, opaque, spherical beads
• Particle Size:
  • Particle Diameter: 550 ± 50 µm
  • Uniformity Coefficient: ≤ 1.1
  • Fine content (< 300 µm): ≤ 0.2%
  • Coarse content (> 850 µm): ≤ 1.0%
• Density:
  • Particle Density: 1.05 g/mL
  • Shipping Weight: 640 g/L
• Whole Beads: ≥ 95%

Chemical Properties

• Ionic Form as Shipped: Free Base (FB)
• Water Retention Capacity: 54 – 62%
• Average Pore Diameter: 300 – 500 Å

Swelling

• FB ⟶ HCl: 20%

Suggested Operating Conditions

• pH Range: Stable at 0 – 14
• Maximum Operating Temperature (FB): 60°C (140°F)
• Flowrates:
  • Service: 1 – 4 BV*/h
  • Backwash: See Figure 1 (Temperature = 10 – 60°C)
  • Fast Rinse (if applicable): 2 – 10 BV/h

*1 BV (Bed Volume) = 1 m³ resin or 7.5 gal per ft³ resin

Hydraulic Characteristics

• Bed expansion and pressure drop data are available in Figure 1 and Figure 2, respectively. These figures are based on tests with water (1 cp viscosity at 20°C or 70°F) and without immobilized enzyme.

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