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Highly selective for divalent cations such as Ca²⁺ and Mg²⁺ in hard water softening applications.
Exceptional physical and chemical stability across broad pH range (0–14) and elevated temperatures.
Low operating pressure drop due to uniform spherical bead morphology and optimized particle size distribution.
Regenerable with standard NaCl brine, enabling cost-effective and sustainable long-term operation.
Complies with global food-contact and potable water standards including NSF/ANSI Standard 61.
Industrial boiler feedwater softening to prevent scale formation and extend equipment life.
Potable water treatment for municipal and decentralized drinking water systems.
Food and beverage processing where consistent low-hardness water is critical for product quality.
Pharmaceutical-grade water purification for WFI (Water for Injection) pre-treatment stages.
Electroplating rinse water recycling to recover valuable metal ions and reduce wastewater discharge.
| Chemical Type | Strong Acid Cation (SAC), sulfonated polystyrene-divinylbenzene copolymer |
| Product Form | Moist, spherical beads |
| Appearance | Opaque amber to light brown beads |
| Functional Group | Sulfonic acid (–SO₃H) |
| Ion Form | Na⁺ form (ready-to-use) |
| Particle Size Range | 0.3–1.2 mm |
| Moisture Content | 45–50% (as shipped) |
| Exchange Capacity (min.) | 1.8 mmol/mL (Na⁺ form, wet) |
Q1: What is the primary functional group and ionic form of LANXESS LEWATIT TP 272?
A: LEWATIT TP 272 is a strongly acidic cation exchange resin based on a sulfonated polystyrene-divinylbenzene matrix, supplied in the sodium (Na⁺) form for softening and general cation removal applications.
Q2: Is LEWATIT TP 272 suitable for potable water treatment?
A: Yes — LEWATIT TP 272 is manufactured and tested to meet requirements for use in drinking water systems, including compliance with relevant global food-grade and potable water contact standards for ion exchange resins.
Q3: How does TP 272 compare to standard gel-type cation resins in terms of physical stability and operating capacity?
A: TP 272 features a macroporous structure that provides enhanced mechanical and osmotic stability under frequent regeneration cycles and variable feedwater conditions, supporting reliable long-term performance in demanding industrial softening and demineralization duties.
Q4: What regeneration chemicals are typically used with LEWATIT TP 272?
A: Sodium chloride (NaCl) brine is the standard regenerant for softening operation; for full-cycle demineralization, it can also be regenerated with hydrochloric acid (HCl) when operated in the hydrogen (H⁺) form.
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