LEWATIT® MDS 1369 Na / 350

Summary

Product Identification

• Product Name: Lewatit® MDS 1369 Na 350
• Common Description: Food grade, gel-type, monodisperse, strongly acidic cation exchange resin
• Matrix: Styrenic
• Structure: Gel
• Functional Group: Sulfonic acid
• Delivery Form: Na⁺
• Appearance: Light brown, transparent
• Production: Manufactured in a 1,2-dichloroethane-free production process.

Specified Data

• Uniformity coefficient: max. 1.15
• Mean bead size (d₅₀): 0.33-0.39 mm
• Total capacity (H⁺ form): min. 1.8 eq/L

Typical Physical and Chemical Properties

• Bulk density for shipment (+/- 10%): 820 g/L
• Density (approx.): 1.24 g/mL
• Water retention (H⁺ form): 47-53 % (by weight)
• Stability pH range: 5-14
• Stability temperature range: 1-120 °C
• Storage time (after delivery): min. 0.5 years
• Storage temperature range: -20 - +40 °C

Operating Conditions

• Operating temperature: max. 120 °C
• Operating pH range during exhaustion: 0-14
• Bed depth for single column: min. 800 mm
• Backwash bed expansion (at 20°C): 15 % per m/h
• Specific pressure loss (at 15°C): 4 kPa*h/m²
• Max. pressure loss during operation: 200 kPa

Additional Information & Regulations

• Startup Recommendations: For drinking water treatment and specific aqueous solutions, startup recommendations are available on demand.
• Safety Precautions: Avoid contact with strong oxidants (e.g., nitric acid). Refer to the safety data sheet for detailed information.
• Disposal: Follow European waste nomenclature guidelines for disposal in the European Community.
• Storage: Store under roof in dry conditions above freezing point and out of direct sunlight. If frozen, allow to thaw gradually at ambient temperature.
• Packaging: Packaging stability is limited to 24 months under recommended storage conditions.

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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