Amberlite IRA900 Cl

Summary

Product Identification

• Product Name: AMBERLITE™ IRA900 Cl
• Type: Industrial Grade Strong Base Anion Exchanger
• Description: Macroreticular polystyrene type 1 strong base anion exchange resin containing quaternary ammonium groups. Designed for complete removal of all anions, including weakly dissociated ions like silica, and soluble organic molecules. Exhibits superior resistance to mechanical and osmotic shock due to its macroreticular structure.

Properties

• Physical form: Tan spherical beads
• Matrix: Styrene divinylbenzene copolymer
• Functional group: Trimethyl ammonium
• Ionic form as shipped: Chloride
• Total exchange capacity: ≥ 1.00 eq/L (Cl⁻ form)
• Moisture holding capacity: 58 to 64 % (Cl⁻ form)
• Shipping weight: 700 g/L
• Particle size:
  • Uniformity coefficient: ≤ 1.80
  • Harmonic mean size: 0.650 to 0.820 mm
  • < 0.300 mm: 0.5 % max
• Reversible swelling: Cl⁻ → OH⁻ ≤ 25 %

Suggested Operating Conditions

• Maximum operating temperature: 60 °C
• Minimum bed depth: 700 mm
• Service flow rate: Up to 120 BV*/h
• Regeneration:
  • Regenerant: NaOH
  • Level: 50 to 150 g/L
  • Concentration: 2 to 4 %
  • Minimum contact time: 30 minutes
  • Slow rinse: 2 BV at regeneration flow rate
  • Fast rinse: 4 to 8 BV at service flow rate

* 1 BV (Bed Volume) = 1 m³ solution per m³ resin

Applications

This resin is useful in water treatment applications where organic fouling is a concern for strong base, type 1, resins due to its macroreticular structure. It can also function as an organic scavenger placed before a deionization system to remove natural organic substances from raw water, thereby protecting subsequent anion exchange resins from irreversible organic fouling.

Performance

Refer to engineering data sheet EDS 0258 A for information to calculate operating capacity and silica leakage.

Limits of Use

Suitable for industrial uses. For specific applications such as pharmaceutical, food processing, or potable water, consult Rohm and Haas for advice on resin selection and operating conditions.

Hydraulic Characteristics

Figures 1 and 2 in the original document show bed expansion and pressure drop data, respectively, as functions of flow rate and water temperature. Pressure drop data are valid at the start of a service run with clear water and a correctly classified bed.

---

Disclaimer: This extracted summary may omit figures, footnotes, or revisions. Contractual data must be confirmed against the OEM PDF revision used for the specific project.

Official datasheet (PDF)

Lenntech datasheet mirror