Purolite C145

Summary

Product identification

Purolite C145 - Polystyrenic Macroporous, Strong Acid Cation Resin, Sodium form

Typical Physical & Chemical Characteristics

• Polymer Structure: Macroporous polystyrene crosslinked with divinylbenzene
• Appearance: Spherical Beads
• Functional Group: Sulfonic Acid
• Ionic Form: Na⁺ form
• Total Capacity: 1.5 eq/L (32.8 Kgr/ft³) (Na⁺ form)
• Moisture Retention: 55 - 60 % (Na⁺ form)
• Particle Size Range: 300 - 1200 µm
  • < 300 µm (max.): 1 %
• Uniformity Coefficient (max.): 1.7
• Reversible Swelling, Na⁺ → H⁺ (max.): 6 %
• Specific Gravity: 1.22
• Shipping Weight (approx.): 770 - 805 g/L (48.1 - 50.3 lb/ft³)
• Temperature Limit (H⁺ form): 120 °C (248.0 °F)
• Temperature Limit (Na⁺ form): 140 °C (284.0 °F)

Hydraulic Characteristics

Backwash

• During up-flow backwash, the resin bed should be expanded between 50% and 70% for at least 10 to 15 minutes.
• This operation frees particulate matter, clears bubbles and voids, and reclassifies resin particles.
• Initial service classification may require approximately 30 minutes of expansion.
• Bed expansion increases with flow rate and decreases with influent fluid temperature.
• Caution required to avoid resin loss through the top of the vessel by over-expansion.

Pressure Drop

• The pressure drop across the resin bed depends on particle size distribution, bed depth, voids volume, flow rate, and influent viscosity.
• Factors affecting these parameters (e.g., filtered particulate matter, abnormal resin compressibility, incomplete bed classification) can adversely affect head loss.
• Service flow rates may vary from 10 to 40 BV/h, depending on influent water quality, application, and plant design.

Principal Applications

• Demineralization

Advantages

• Very resistant to osmotic shock
• High porosity

Regulatory Approvals

• IFANCA Halal Certified

Typical Packaging

• 1 ft³ Sack
• 25 L Sack
• 5 ft³ Drum (Fiber)
• 1 m³ Supersack
• 42 ft³ Supersack

Disclaimer: 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