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Description
DuPont™ AmberTec™ MR-300 UPW H/OH Ion Exchange Resin is an ultrapure water-grade, mixed resin recommended as a working or polishing mixed bed to complement 2-bed ion exchange or reverse osmosis systems. It can be used as a regenerable mixed bed since the color difference and particle size difference will allow a visually good separation to achieve optimal regeneration. Very low ionic load to a regenerable mixed bed can occasionally lead to clumping, especially when the mixed bed is operated to a boron or silica break. An improvement in the manufacturing process of the anion component will eliminate cation/anion clumping under normal regeneration conditions. The ratio of anion to cation in AmberTec™ MR-300 UPW H/OH is volumetrically optimized to achieve maximum removal of boron and silica. Semiconductor-grade is characterized by the high conversion to ionic sites (≥ 95.0%). As shown in Figure 2, the excellent rinse characteristics also allow very efficient online operation.
Applications
• Regenerable, polishing mixed bed
• Working mixed bed following reverse osmosis
• Non-regenerable, polishing mixed bed
Historical Reference
AmberTec™ MR-300 UPW H/OH Ion Exchange Resin has previously been sold as DOWEX MONOSPHERE™ MR-3 UPW Ion Exchange Resin.
Typical Properties
