Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Lanxes-s LEWATIT S 5128 Ion Exchange Resin

Lanxes-s LEWATIT S 5128 is a high-capacity, strongly acidic cation exchange resin featuring macroporous polystyrene-divinylbenzene matrix with sulfonic acid functional groups. Designed for industrial water softening and demineralization, it offers excellent kinetic performance, high chemical stability, and superior regeneration efficiency—ideal for demanding boiler feedwater and process water applications.
  • lanxes s lewatit s 5128 ion exchange resin_cf5c27d5
  • lanxes s lewatit s 5128 ion exchange resin_cf5c27d5

Features Of Lanxes-s LEWATIT S 5128 Ion Exchange Resin

  1. Highly selective for divalent cations such as Ca²⁺ and Mg²⁺, enabling superior hardness removal.

  2. Optimized macroporous polystyrene matrix ensures excellent kinetic performance and resistance to fouling.

  3. Exceptional chemical and thermal stability, suitable for regeneration with standard acid solutions (e.g., HCl or H₂SO₄).

  4. Consistent spherical bead morphology with narrow particle size distribution for uniform hydraulic performance.

  5. Low operating pressure drop and high bed life due to robust mechanical strength and abrasion resistance.

Typical Applications Of Lanxes-s LEWATIT S 5128 Ion Exchange Resin

  1. Drinking water softening in municipal and point-of-use treatment systems.

  2. Pre-treatment for reverse osmosis (RO) and nanofiltration (NF) feed water to prevent scaling.

  3. Industrial boiler feedwater conditioning in power generation and manufacturing facilities.

  4. Food and beverage processing where strict control of calcium and magnesium is required.

  5. Pharmaceutical-grade water purification complying with USP/EP conductivity and metal ion limits.

Specifications Of Lanxes-s LEWATIT S 5128 Ion Exchange Resin

Chemical TypeStrong Acid Cation (SAC), Macroporous Polystyrene-DVB
Product FormNa⁺ form (ready-to-use)
AppearanceUniform amber spherical beads
Functional GroupSulfonic acid (–SO₃H)
Ion Exchange Capacity (min.)1.9 eq/L (dry basis)
Moisture Content47 – 53 % (as shipped)
Particle Size Range0.4 – 0.7 mm
Uniformity Coefficient (max.)1.6


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