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Highly selective for monovalent anions (e.g., chloride, nitrate) in the presence of multivalent ions such as sulfate.
Optimized macroporous matrix provides excellent kinetic performance and resistance to fouling in challenging feed waters.
Superior chemical and thermal stability—suitable for regeneration with NaOH and operation up to 60 °C.
Low operating pressure drop due to uniform spherical bead structure and narrow particle size distribution.
Designed for high-capacity, long-cycle demineralization in mixed-bed and polishing applications.
Final polishing of ultrapure water for semiconductor manufacturing.
Nitrate and chloride removal from drinking water supplies.
High-purity steam generation in pharmaceutical and biotechnology facilities.
Pre-treatment for reverse osmosis systems requiring low ionic leakage.
Condensate polishing in power plant closed-loop cooling circuits.
| Chemical Type | Strong base anion exchange resin, Type I, quaternary ammonium functional group |
| Product Form | Moist, spherical beads |
| Appearance | Off-white to light yellow, translucent beads |
| Matrix Structure | Macroporous polystyrene-divinylbenzene copolymer |
| Functional Group | -N(CH₃)₃Cl⁻ |
| Ionic Form | Chloride form (Cl⁻) |
| Particle Size Range | 0.3–1.2 mm |
| Moisture Content | 45–50 % (w/w) |
Q1: What is the primary functional group and ionic form of LEWATIT MonoPlus S 215 KR?
A: LEWATIT MonoPlus S 215 KR is a strongly acidic cation exchange resin in the sodium form, featuring sulfonic acid functional groups grafted onto a highly crosslinked polystyrene-divinylbenzene matrix.
Q2: Is this resin suitable for pharmaceutical or food-grade water purification applications?
A: Yes — LEWATIT MonoPlus S 215 KR is manufactured and tested to meet stringent quality requirements for use in high-purity water systems, including those supporting pharmaceutical manufacturing and food-grade process water, subject to appropriate validation and regulatory compliance by the end user.
Q3: How does the MonoPlus S 215 KR differ from standard gel-type cation resins?
A: It features an optimized monodisperse bead structure with uniform particle size distribution and enhanced mechanical stability, resulting in lower pressure drop, improved bed homogeneity, and superior regeneration efficiency compared to conventional gel-type resins.
Q4: What are typical operating temperature and pH limits for this resin?
A: The resin is designed for continuous operation within a pH range of 0–14 and temperatures up to 120 °C, though long-term thermal stability is maximized when operated below 100 °C under standard service conditions.
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