LEWATIT® S 8229

Summary

Product identification

Lewatit® S 8229 is a food grade, macroporous, weakly acidic cation exchange resin based on a crosslinked polyacrylate. It is bead-shaped and has a special bead size distribution for use in household filter systems.

Operating limits

• Operating temperature: max. 70 °C
• Operating pH range during exhaustion: 5-14
• Stability pH range: 0-14
• Stability temperature range: 1-70 °C

Feed water

The resin is buffered with sodium. Special care should be given to the initial cycles of the new resin when treating potable water. Recommended start-up conditions are available on request.

Product water

In the buffered hydrogen form, Lewatit® S 8229 is suitable for use in household filter systems.

Physical and Chemical Properties

• Common Description:
  • Delivery form: H⁺/Na⁺
  • Functional group: Carboxylic acid
  • Matrix: Crosslinked polyacrylate
  • Structure: Macroporous
  • Appearance: white, opak
• Specified Data:
  • Uniformity coefficient: max. 1.8
  • Range of size for >90 vol% of all beads: 0.4-1.6 mm
  • Effective size (d₁₀): 0.46-0.56 mm
  • Total capacity (H⁺ form): min. 4.3 eq/L
• Typical Physical and Chemical Properties:
  • Bulk density for shipment (+/- 5%): 770 g/L
  • Density: approx. 1.2 g/mL
  • Water retention (delivery form): approx. 47-53 % by weight

Electrical

No specific electrical data was provided in the extract.

Mechanical / hydraulic

No specific mechanical or hydraulic data was provided in the extract.

Storage and Handling

• Storage temperature range: -20 - +40 °C
• Storage time (after delivery): max. 1 year
• Recommended storage: Above the freezing point of water, under roof, in dry conditions, without exposure to direct sunlight.
• Frozen resin: If resin becomes frozen, it should thaw gradually at ambient temperature without mechanical handling and must be completely thawed before use. Do not accelerate thawing.
• Packaging stability: Limited to 24 months under recommended storage conditions.
• Safety precautions: Strong oxidants (e.g., nitric acid) can cause violent reactions. Observe the safety data sheet.
• Disposal: Dispose of according to the European waste nomenclature within the European Community.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror