Dow Water & Process Solutions

DOWEX™ MONOSPHERE™ MP-725A (OH)

Uniform particle size macroporous strong base anion exchange resin for mixed bed demineralization and condensate polishing applications.

Product Name	Type	Matrix	Functional Group
DOWEX MONOSPHERE MP-725A (OH)	Type I Strong Base Anion	Styrene-DVB, Macroporous	Quaternary Amine

Guaranteed Sales Specification	Units	OH- Form
Total Exchange Capacity, min.	eq/L	0.8
Total Exchange Capacity, min.	kgr/ft3 as CaCO3	17.5
Water Retention Capacity	%	65 - 75
Uniformity Coefficient		1.1 max.
Particle Size Distribution
Mean Particle Size	μm	690 ± 50
>850 μm, max.	%	5
<300 μm, max. (50 mesh)	%	0.5
Whole Beads, min.	%	95
Trace metals, ppm dry resin, max.	Na Fe Cu Al 50 50 50 50

Typical Physical and Chemical Properties	Units	OH- Form
Total Swelling (Cl- → OH-)	%	15
Particle Density	g/mL	1.04
Shipping Weight**	g/L	625
Shipping Weight**	lbs/ft3	39

** 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).