CSA 121

Strong Acid Cation Exchange Resin

DOSHION CSA 121 has a strongly acidic unifunctional cross linked polystyrene structure containing sulphonic acid groups. It is a high capacity gel type resin with excellent physical and chemical properties specially developed for industrial and domestic water softening applications having high hardness of calcium and magnesium salts. Primarily the resin is supplied in Sodium form and however can also be used in demineralisation and other special applications in H+ form.
DOSHION CSA 121 is highly resistant to attrition and osmotic shocks & offers minimum pressure drop across the resin bed under a wide variety of operating conditions.
PROPERTIES
Matrix Cross linked Polystyrene Gel
Functional group So3 (Sulphonic )
Ionic Form  Na+ -Hydrogen
Physical Form Hard Moist Beads
Particle size (mm) 0.30- 1.20
Moisture Content % 47 – 53 %
Total Exchange Capacity (eq/L) (min) 1.8  Na+ form
Bulk Density / Shipping Weight (gm/L) 800-840
Operating pH Range 0-14
Solubility in common solvents Insoluble
Volume change % (max) : Na+ to H+ 10
SUGGESTED OPERATING CONDITIONS
Operating Temperature (max) °C 120
Minimum Bed Depth cm 75
Regenerant Concentration % 10-16(NaCl)
Regenerant Flow Rate *BV/hr 2 – 4
Regenerant Contact Time Minutes 30
Regeneration Level 100% Kg  M3 of Resin 60-160 (NaCl)
Displacement Rinse Rate *BV/hr 2 – 4
Displacement Rinse Volume *BV 1-2
Fast Rinse Rate *BV/hr 10-40
Fast Rinse volume *BV 4 – 10
Service flow rate *BV/hr 10-40

* Bed Volumes/Hour #Bed Volumes

Pharma Polymer (20)

Active Pharmaceutical Ingredients (API) (4)

Taste Masking Agents (7)

Tablet Disintegrating Agents (3)

Nicotine Taste Masking (1)

Separation of Aminoacids, Enzymes & Alkloids (1)

Purification of Vitamin C (1)

Stabilization of Vitamin B12 (1)

Sustain/Control release (2)

Ion Exchange Resin (53)

Softening Resins (5)

Demineralisation Resins (22)

  1. CSA 121
  2. CSA 9
  3. CSA 9 L
  4. CSA 609D
  5. CWA 63
  6. GA 11
  7. GA 12
  8. GA 13
  9. ASB 8010D
  10. ASB 8020D
  11. ASB 108
  12. ASB-171
  13. AWB 7020D
  14. AWB 7030D
  15. AWB 7050D
  16. DMB 13
  17. CSA 9 UPS
  18. CSA 29 UPS
  19. GA 13 UPS
  20. GA 11 UPS
  21. ASB 8010D UPS
  22. AWB 7050D UPS

Condensate Polishing /TPS Resins (7)

Catalytic Resins (2)

Super Charged Resins (2)

Decolor / De Ashing Resins (7)

Nuclear Grade Resins (2)

Color Removal & COD Reduction Resins (1)

Special Application Resins (5)