Amberlite IRC76

Summary

Product identification

• Product Name: AMBERLITE IRC76
• Description: Industrial Grade Weak Acid Exchanger
• Matrix: Polyacrylic copolymer
• Functional groups: – COO⁻
• Physical form: Light yellow opaque beads
• Ionic form as shipped: H⁺

Properties

• Total exchange capacity: ≥ 3.90 eq/L (H⁺ form)
• Moisture holding capacity: 52 to 58 % (H⁺ form)
• Specific gravity: 1.14 to 1.18 (H⁺ form)
• Shipping weight: 700 g/L
• Particle size:
  • Harmonic mean size: 0.50 - 0.75 mm
  • Uniformity coefficient: ≤ 1.9
  • Fine contents (< 0.300 mm): 3.0 % max
  • Coarse beads (> 1.180 mm): 5.0 % max
• Maximum reversible swelling:
  • H⁺ → Na⁺: 60 %

Suggested Operating Conditions

• Maximum operating temperature: 100°C
• Minimum bed depth: 700 mm
• Service flow rate: 5 to 40 BV*/h
• Regenerant:
  • HCl:
    • Flow rate: 2 to 8 BV/h
    • Concentration: 2 to 5 %
    • Level: 104 to 110 % of the theory
  • H₂SO₄:
    • Flow rate: 15 to 40 BV/h
    • Concentration: 0.5 to 0.7 %
    • Level: 104 to 110 % of the theory
• Rinse:
  • Slow rinse: 2 BV at regeneration flow rate
  • Fast rinse: 2 to 4 BV at service flow rate

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

Performance

AMBERLITE IRC76 is readily regenerated with little over-stoichiometric amounts of strong acids. If sulphuric acid is used, a low concentration (ca 0.7 %) is advised to avoid calcium sulphate precipitation.

Limits of Use

Suitable for industrial uses. For pharmaceutical, food processing, or potable water applications, consult Rohm and Haas.

Hydraulic Characteristics

Figures 1 and 2 in the original document provide data for bed expansion and pressure drop, respectively, as functions of backwash flow rate, service flow rate, and water temperature.

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Disclaimer This extracted summary may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror