Typical Physical & Chemical Characteristics

Polymer Matrix Structure

Macroporous Polystyrene with DVB

Functional Group

R-N(CH₃)₃⁺X^-

Ionic Form, as shipped

Chloride (Cl^-)

Physical Form And Appearance

Spherical Beads

Sphericity

95% min.

Screen Size Range
--- U.S. Standard Screen

16-50 mesh, wet

Particle Size Range

0.3-1.2mm

Uniformity Coefficient

1.6 max.

Water Retention, Cl^- form

60-65%

Swelling Cl^- → OH^-

20-30%

Shipping Weight, Cl^- form

660-730 g/l (43 lbs/cu.ft, approx.)

Total Exchange Capacity, Cl^- form

1.10 eq/l min.

pH Range

0-14

Suggested Operating Conditions

Maximum Temperature
Cl^- form

80ºC (170ºF) max.  

Minimum Bed Depth

0.8m

Backwash Expansion

50-75% bed expansion

Regeneration 
Potable water
Industry Use(Regenerant Concentration)
Flow Rate
Contact Time

NaCl solution
200 g/l NaCl + 2 - 4% NaOH
5m/h
30 Minutes

Displacement Rinse Rate

5m/h

Displacement Rinse Volume

2 Bed Volume

Rinse Rate

5m/h

Rinse Volume

2 Bed Volume

Hydraulic Properties

Pressure Drop: The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.

Backwash: After each cycle the resin bed should be backwashed at a rate that expands the bed 50 to 75 percent. This will remove any foreign matter and reclassify the bed. The graph above shows the expansion characteristics of PX222