Mizuki Gakko

Cationic Resin

Core Ion CX-5000

is a high-capacity premium grade bead form conventional gel polystyrene sulfonate. This resin is ideal for use in industrial or household water conditioning equipment. It possesses similar acidity levels to inorganic acids like sulfuric acid (H2SO4) and hydrochloric acid (HCl). The resin can function as an ion exchanger in alkaline, neutral, and acidic environments, showcasing rapid exchange capability and strong physical durability.

Typical Physical and Chemical Properties

Item	Specifications
Polymer Matrix Structure	Crosslinked polystyrene divinylbenzene
Physical Form and Appearance	Light yellow spherical beads
Functional Groups	R-SO3-
Ionic Form (as shipped)	Na+ (sodium)
Total Capacity (Na+ form, wet, volumetric)	≥1.9 eq/L (minimum)
Moisture Retention (Na+ form)	45-50%
Particle Size Range	0.315 mm - 1.25 mm
<300 µm particles (max.)	1%
Uniformity Coefficient (max.)	1.6
Effective Size	0.4 mm - 0.7 mm
Reversible Swelling (Na+ → H+)	Max. 10%
Reversible Swelling (Ca2+ → Na+)	Max. 5%
Shipping Weight (approx.)	770 - 870 g/L
Specific Gravity (wet Na+ form)	1.27
Temperature Limit	120°C
pH Range (Stability)	0 - 14

Suggested Operating Condition

Item	Specifications
Maximum Operating Temperature (Na+ Form)	120°C max.
Maximum Operating Temperature (H+ Form)	100°C max.
Backwash Rate (Bed Expansion)	25-50% bed expansion
Regenerant Concentration (Hydrogen Cycle)	3% HCl or 2-3% H2SO4
Regenerant Concentration (Sodium Cycle)	6-8% NaCl or 3% NaOH
Regenerant Dosage (HCl or H2SO4)	HCl or H2SO4 to Resin Volume = 3:1
Regenerant Dosage (NaCl)	NaCl to Resin Volume = 2:1
Regenerant Dosage (NaOH)	NaOH to Resin Volume = 3:1
Regenerant Flow Rate	2-4 BV/h
Regenerant Contact Time	At least 60 minutes
Service Flow Rate	10-25 m³/h