Purolite A503

Summary

Product identification

• Product Name: Purolite A503
• Description: Polystyrenic Macroporous, Type I Strong Base Anion Resin, Chloride form
• Functional Group: Type I Quaternary Ammonium
• Ionic Form: Cl⁻ form

Typical Physical & Chemical Characteristics

• Polymer Structure: Macroporous polystyrene crosslinked with divinylbenzene
• Appearance: Spherical Beads
• Total Capacity: 1 eq/L (Cl⁻ form)
• Moisture Retention: 61 - 66 % (Cl⁻ form)
• Particle Size Range: 300 - 1200 µm
• Fines (< 300 µm): 1 % (max.)
• Uniformity Coefficient: 1.7 (max.)
• Reversible Swelling (Cl⁻ → OH⁻): 20 % (max.)
• Specific Gravity: 1.08
• Shipping Weight (approx.): 670 - 700 g/L

Operating limits

• Temperature Limit (Cl⁻ form): 100 °C
• Temperature Limit (OH⁻ form): 62 °C

Principal Applications

• Demineralization

Advantages

• High operating capacity
• Superior resistance to organic fouling
• Excellent resistance to osmotic and thermal shock

Hydraulic Characteristics

Backwash

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

Pressure Drop

• Service flow rates may vary from 10 to 40 BV/h, depending on water quality, application, and plant design.

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