DOWEX™ MONOSPHERE™ MR-450 UPW

A non-separable uniform particle size mixed bed ion exchange reins for ultra pure water production.

Product Name Type Matrix Functional Group
DOWEX MONOSPHERE MR-450 UPW Mixed Bed Styrene-DVB, Gel Sulfonic Acid and Quaternary Ammonium


Guaranteed Sales Specification Units OH- Form H+ Form
Total Exchange Capacity, min. eq/L 1.0 1.9
Total Exchange Capacity, min. kgr/ft3 as CaCO3 21.9 41.5
Water Retention Capacity % 55 - 65 46 - 53
Uniformity Coefficient 1.1 max. 1.1 max.
Particle Size Distribution
     Mean Particle Size μm 590 ± 50 360 ± 50
Whole Uncracked Beads, min. % 95 95
Crush Strength
     Average, min. g/bead 350 350
     >200 g/bead, min. % 95 95


Typical Physical and Chemical Properties Units OH- Form H+ Form
Particle Density g/mL 1.08 1.22
Shipping Weight** g/L 704 704
Shipping Weight** lbs/ft3 44 44



Note*: Resin ratio of anion to cation is volumetrically optimized to achieve maximum removal of boron, silica, and other sensitive ions.
** As per the backwashed and settled density of the resin, determined by ASTM D-2187.


For additional particle size information, please refer to the Particle Size Distribution Cross Reference Chart (40KB PDF).



®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow