Purolite C145S

Summary

Product identification

• Product Name: Purolite C145S
• Description: Polystyrenic Macroporous, Strong Acid Cation Resin, Sodium form
• Polymer Structure: Macroporous polystyrene crosslinked with divinylbenzene
• Appearance: Spherical Beads
• Functional Group: Sulfonic Acid
• Ionic Form: Na⁺ form

Typical Physical & Chemical Characteristics

• Total Capacity: 1.5 eq/L (32.8 Kgr/ft³) (Na⁺ form)
• Moisture Retention: 55 - 60 % (Na⁺ form)
• Particle Size Range: 425 - 1200 µm
• Fines (< 425 µm): 2 % (max.)
• Uniformity Coefficient: 1.6 (max.)
• Reversible Swelling, Na⁺ → H⁺: 6 % (max.)
• Specific Gravity: 1.22
• Shipping Weight (approx.): 770 - 805 g/L (48.1 - 50.3 lb/ft³)

Operating Limits

• Temperature Limit (H⁺ form): 120 °C (248.0 °F)
• Temperature Limit (Na⁺ form): 140 °C (284.0 °F)

Principal Applications

• Demineralization

Advantages

• Very resistant to osmotic shock
• High porosity

Hydraulic Characteristics

Backwash

• During up-flow backwash, the resin bed should be expanded between 50 and 70% for at least 10 to 15 minutes.
• Bed expansion increases with flow rate and decreases with influent fluid temperature.
• Caution must be taken to avoid loss of resin through the top of the vessel by over expansion.

Pressure Drop

• The pressure drop depends on particle size distribution, bed depth, voids volume, flow rate, and influent solution viscosity.
• Factors like filtered particulate matter, abnormal resin compressibility, or incomplete bed classification can increase head loss.
• Service flow rates may vary from 10 to 40 BV/h depending on water quality, application, and plant design.

Typical Packaging

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

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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