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WaterSolutions DOWEX MONOSPHERE 99K/350 Strong Acid Cation Exchange Resin

DOWEX™ MONOSPHERE™ 99K/350 is a uniform particle size, strong acid cation exchange resin for chromatographic separations in food and beverage applications.

Type	Matrix	Functional Group
Strong Acid Cation	Styrene-DVB, Gel	Sulfonate

Guaranteed Sales Specification	Units	K⁺ Form
Total Exchange Capacity, min.	eq/L	1.5 (H⁺ Form)
Water Retention Capacity	%	57 - 61 (H⁺ Form)
Whole Uncracked Beads	%	98
Particle Density	g/mL	1.32
Shipping Weight** Backwashed, Settled and Drained Tapped and Settled	g/L lbs/ft³ g/L lbs/ft³	800 - 850 50 - 53 815 - 880 51 - 55

Bead Size Distribution		Microns
Volume Median Diameter		347 +/-15
Broad Range	min. 90%	317 - 382
Narrow Range	min. 75%	332 - 367
Fine Fines	max. 1%	< 282
Coarse Fines	max. 4%	< 312
Fine Coarse	max. 4%	> 413
Coarse Coarse	max. 1%	> 483

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Technical Documents

Product Datasheet (PDF)
English (56KB)

Technical Manual (PDF)
English (82KB)

Regulatory Documents

FDA Letter (PDF)
English (50KB)