Dow Water & Process Solutions

DOWEX™ HCR-S/S

A high capacity cation exchange resin for residential softening applications.

Product Name	Type	Matrix	Functional Group
DOWEX HCR-S/S	Strong Acid Cation	Styrene-DVB Gel	Sulfonic Acid

Guaranteed Sales Specification	Units	Na+ Form
Total Exchange Capacity, min.	eq/L	1.9
Total Exchange Capacity, min.	kgr/ft3 as CaCO3	41.5
Particle Size Distribution Range
300 μm - 1200 μm, min. (50 mesh - 16 mesh)	%	90
<300 μm, max. (50 mesh)	%	1
Whole Uncracked Beads, min.	%	90
Acidity Range	pH	7.0 - 10.5

Typical Physical and Chemical Properties	Units	Na+ Form
Water Retention Capacity	%	48 - 52
Total Swelling (Ca++ → Na+)	%	5
Color Throw, as packaged, max.	APHA	20
Particle Density	g/mL	1.30
Shipping Weight**	g/L	800
Shipping Weight**	lbs/ft3	50

** 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).