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Highly uniform spherical beads ensuring consistent hydraulic performance and low pressure drop.
Superior chemical stability in strong acidic and alkaline environments, suitable for repeated regeneration cycles.
Optimized macroporous matrix enabling fast kinetics and efficient removal of multivalent cations.
Low total organic carbon (TOC) leaching, meeting stringent requirements for pharmaceutical and ultrapure water applications.
Manufactured under ISO 9001-certified processes with full traceability and batch-specific quality documentation.
Ultrapure water production for semiconductor manufacturing and microelectronics rinsing.
Pharmaceutical-grade water (PW/WFI) polishing in API synthesis and sterile processing.
Removal of heavy metals (e.g., Cu²⁺, Ni²⁺, Pb²⁺) from industrial wastewater streams.
Cation exchange pretreatment in high-pressure boiler feedwater systems.
Food and beverage industry demineralization where low sodium leakage and regulatory compliance are critical.
| Chemical Type | Strong acid cation exchanger (sulfonic acid group) |
| Product Form | Moist, spherical gel-type beads |
| Appearance | Opaque amber to brown beads |
| Functional Group | –SO₃H (sulfonic acid) |
| Ion Form | H⁺ (hydrogen form, standard packaging) |
| Moisture Content | 46–50 % (w/w) |
| Particle Size Range | 315–1250 µm (≥95% retained between 315–1250 µm) |
| Uniformity Coefficient | ≤1.6 |
Q1: What is the primary functional group and ionic form of LEWATIT MonoPlus M 500?
A: LEWATIT MonoPlus M 500 is a strongly acidic cation exchange resin based on a styrene-divinylbenzene matrix, functionalized with sulfonic acid groups. It is supplied in the sodium (Na⁺) form, enabling efficient removal of hardness ions such as Ca²⁺ and Mg²⁺ in water softening applications.
Q2: Is this resin suitable for pharmaceutical or food-grade applications?
A: LEWATIT MonoPlus M 500 is designed for high-purity industrial water treatment and meets common regulatory expectations for use in pharmaceutical process water and food/beverage production, provided it is operated within validated system parameters and regenerated using compliant reagents. End-use compliance requires verification against applicable local and industry-specific quality requirements.
Q3: How does MonoPlus M 500 differ from conventional gel-type cation resins?
A: As part of the MonoPlus series, M 500 features a uniform particle size distribution and highly spherical beads, which improve hydraulic performance, reduce pressure drop, and enhance regeneration efficiency compared to standard gel-type resins. Its optimized physical structure also supports higher service flow rates and more consistent ion exchange kinetics.
Q4: What are typical operating temperature and pH limits for this resin?
A: LEWATIT MonoPlus M 500 is stable under standard water treatment conditions, with recommended continuous operation between 5 °C and 100 °C. It maintains effective performance across a broad pH range (approximately 0–14), though long-term exposure to extreme pH at elevated temperatures may affect operational lifespan.
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