Dow Water & Process Solutions

DOWEX™ MONOSPHERE™ 545C (H)

A uniform particle size strong acid cation exchange resin for mixed bed demineralization and condensate polishing applications.

Product Name	Type	Matrix	Functional Group
DOWEX MONOSPHERE 545C (H)	Strong Acid Cation	Styrene-DVB, Gel	Sulfonic Acid

Guaranteed Sales Specification	Units	H+ Form
Total Exchange Capacity, min.	eq/L	2.5
Water Retention Capacity	%	36 - 42
Uniformity Coefficient		1.10 max.
Particle Size Distribution
Mean Particle Size	μm	520 ± 50
Whole Uncracked Beads, min.	%	95
Crush Strength
Average, min.	g/bead	500
>200 g/bead, min.	%	95
Trace metals, ppm dry resin, max.	Na Fe Cu Al 100 50 50 50
Ionic conversion, min.	H+ 99%

Typical Physical and Chemical Properties	Units	H+ Form
Total Swelling (Na+ → H+), approx.	%	5
Particle Density	g/mL	1.27
Shipping Weight**	g/L	820
Shipping Weight**	lbs/ft3	51
Heavy Metals (as Pb)	ppm dry resin, max.	20

** 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).