LEWATIT® MDS 1268 Ca / 290

Summary

Product identification

• Product Name: Lewatit® MDS 1268 Ca 290
• Common Description: Strongly acidic cation exchange resin
• Delivery form: Ca²⁺
• Functional group: Sulfonic acid
• Matrix: Styrenic
• Structure: Gel
• Appearance: Light brown, transparent

Operating limits

• Stability pH range: 5-14
• Stability temperature range: 1-120 °C
• Operating temperature (max.): 120 °C
• Operating pH range during exhaustion: 0-14

Feed water

• Bed depth for single column (min.): 800 mm
• Back wash bed expansion per m/h (20°C): 15 %
• Specific pressure loss (15°C): 4 kPa*h/m²
• Max. pressure loss during operation: 200 kPa

Specified Data

• Uniformity coefficient (max.): 1.15
• Mean bead size (d₅₀): 0.26 - 0.32 mm
• Total capacity (H⁺ form) (min.): 1.5 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 10%): 800 g/L
• Density (approx.): 1.3 g/mL
• Water retention (H⁺ form) (approx. weight %): 55 - 67 %

Storage

• Storage time (after delivery) (min.): 0.5 years
• Storage temperature range: -20 - +40 °C
• Storage conditions: Recommended to store at temperatures above freezing point of water, under roof, in dry conditions without direct sunlight.
• Frozen resin: If frozen, allow to thaw gradually at ambient temperature. Do not mechanically handle.

Electrical

None specified.

Mechanical / hydraulic

• Back wash bed expansion per m/h (20°C): 15 %
• Specific pressure loss (15°C): 4 kPa*h/m²
• Max. pressure loss during operation: 200 kPa

Additional Information & Regulations

• Safety precautions: Strong oxidants (e.g., nitric acid) can cause violent reactions. Observe the Safety Data Sheet.
• Toxicity: Observe the Safety Data Sheet for additional data on product description, transport, storage, handling, safety, and ecology.
• Disposal: In the European Community, dispose according to the European waste nomenclature.
• Packaging stability: Limited to 24 months under described storage conditions. Check packaging condition regularly if used beyond this timeframe.

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