Dow Water Solutions

DOWEX MARATHON A2

An efficient, uniform particle size, high capacity, Type II strong base anion exchange resin for demineralization applications.

Product Name	Type	Matrix	Functional Group
DOWEX MARATHON A2	Type II Strong Base Anion	Styrene-DVB, Gel	Dimethylethanol Amine

Guaranteed Sales Specification	Units	Cl- Form
Total Exchange Capacity, min.	eq/l	1.2
Total Exchange Capacity, min.	kgr/ft3 as CaCO3	26.2
Water Retention Capacity	%	45 - 54
Uniformity Coefficient		1.1 max.

Typical Physical and Chemical Properties	Units	Cl- Form
Whole Uncracked Beads	%	95 - 100
Mean Particle Size	μm	570 ± 50
Total Swelling (Cl- → OH-)	%	15
Particle Density, approx.	g/ml	1.09
Shipping Weight, approx.	g/l	690
Shipping Weight, approx.	lbs/ft3	43

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