Dow Water & Process Solutions

DOWEX™ MARATHON™ 11

A uniform particle size, porous gel, strong base anion exchange resin specifically designed for demineralization of high organic water and as an organic scavenger.

Product Name	Type	Matrix	Functional Group
DOWEX MARATHON 11	Type I Strong Base Anion	Styrene-DVB, Gel	Quaternary Amine

Guaranteed Sales Specification	Units	Cl- Form
Total Exchange Capacity, min.	eq/L	1.3
Total Exchange Capacity, min.	kgr/ft3 as CaCO3	28.4
Water Retention Capacity	%	48 - 58
Uniformity Coefficient		1.1 max.

Typical Physical and Chemical Properties	Units	Cl- Form
Whole Uncracked Beads	%	95 - 100
Total Swelling (Cl- → OH-)	%	20
Mean Particle Size	μm	550 ± 50
Particle Density	g/mL	1.08
Shipping Weight**	g/L	670
Shipping Weight**	lbs/ft3	42

** 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).