LEWATIT® MDS 1269 K / 310

Summary

Product identification

• Product Name: Lewatit® MDS 1269 K 310
• Product Type: Food grade, gel-type, monodisperse, strongly acidic cation exchange resin
• Matrix: Styrene-divinylbenzene copolymer
• Functional Group: Sulfonic acid
• Production Process: Manufactured in a 1,2-dichloroethane-free process.

Specified Data

• Uniformity coefficient: max. 1.15
• Mean bead size (d50): 0.28 - 0.34 mm
• Total capacity (H⁺ form): min. 1.5 eq/L

Typical Physical and Chemical Properties

• Appearance: Light brown, transparent
• Common Description: K⁺
• Delivery form: Gel
• Structure: Styrenic
• Bulk density for shipment (+/- 10%): 830 g/L
• Density: approx. 1.3 g/mL
• Water retention (H⁺ form): approx. 55 - 67 weight %

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
• Max. pressure loss during operation: 200 kPa

Mechanical / hydraulic

• Bed depth for single column: min. 800 mm
• Backwash bed expansion per m/h (20°C): 15 %
• Specific pressure loss (15°C): 7 kPa*h/m²

Storage

• Storage time (after delivery): min. 0.5 years
• Storage temperature range: -20 - +40 °C

Additional Information & Regulations

• Safety precautions: Avoid contact with strong oxidants like nitric acid. Observe Safety Data Sheet.
• Disposal: Follow European waste nomenclature.
• Storage Conditions: Store above freezing point of water, under roof, dry, away from direct sunlight. Thaw frozen resin gradually at ambient temperature.
• Packaging Stability: Limited to 24 months under recommended storage conditions.

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