WaterSolutions DOWEX MONOSPHERE 550A UPW (OH) Strong Base Anion Exchange Resin

DOWEX™ MONOSPHERE™ 550A UPW (OH) is a uniform particle size, strong base anion exchange resin for use in ultrapure water applications.

Type	Matrix	Functional Group
Strong Base Anion	Styrene-DVB, Gel	Quaternary Ammonium

Guaranteed Sales Specification	Units	OH^- Form
Total Exchange Capacity, min.	eq/L kgr/ft³ as CaCO₃	1.0 21.9
Water Retention Capacity	%	55 - 65
Uniformity Coefficient		1.1 max.
Particle Size Distribution Mean Particle Size	µm	590 ± 50
Whole Uncracked Beads, min.	%	95
Crush Strength Average, min. > 200 g/bead, min.	g/bead %	350 95

Typical Physical and Chemical Properties Not to be construed as Sales Specifications	Units	OH^- Form
Particle Density	g/mL	1.08
Shipping Weight**	g/L lbs/ft³	657 41

Product Datasheet (PDF)
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Water Chemistry and Pretreatment: Calcium Fluoride Scale Prevention (PDF)
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