LEWATIT® K 2440

Summary

Product identification

Lewatit® K 2440 is a strongly acidic, macroporous polymer-based catalyst in spherical bead form, containing sulfonic acid groups. It is ideally suited as a heterogeneous catalyst for organic reactions and for the processing of aqueous as well as organic liquids at temperatures up to 150°C.

Operating limits

• Stability temperature range: 1-150 °C
• Storage temperature range: -20 - +40 °C

Properties

• Common Description: Strongly acidic, macroporous catalyst
• Functional group: sulfonic
• Matrix: styrenic
• Structure: macroporous
• Appearance: dark, opaque

Specified Data

• Uniformity coefficient: max. 1.7
• Range of size for >90 vol% of all beads: 0.4-1.6 mm
• Effective size (d10): 0.56-0.66 mm
• Total capacity (dry resin): min. 5.4 eq/kg

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 5%): 570 g/L
• Density: approx. 1.12 g/mL
• Water retention (delivery form): approx. 2 weight %
• Surface BET: approx. 30 m²/g
• Pore volume: approx. 0.4 cm³/g
• Pore diameter: approx. 53 nm

Additional Information & Regulations

• Safety precautions: Strong oxidants, e.g. nitric acid, can cause violent reactions if they come into contact with ion exchange resins.
• Toxicity: The safety data sheet must be observed.
• Storage: Recommended to store above the freezing point of water, under roof in dry conditions without direct sunlight. If frozen, thaw gradually at ambient temperature before handling or use.
• Packaging: Packaging stability is limited to 24 months under recommended storage conditions. Use within this timeframe or check packaging condition regularly.

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