LEWATIT® MDS 1268 Ca / 310

Summary

Product identification

Lewatit® MDS 1268 Ca 310 is a food grade, gel-type, monodisperse, strongly acidic cation exchange resin based on a styrene-divinylbenzene copolymer.

Common Description

• Delivery form: Ca²⁺
• Functional group: Sulfonic acid
• Matrix: Styrenic
• Structure: Gel
• Appearance: Light brown, transparent

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

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

Operation

• Operating temperature: max. 120 °C
• Operating pH range during exhaustion: 0-14
• Bed depth for single column: min. 800 mm
• Backwash 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 if they come into contact with ion exchange resins.
• Toxicity: The safety data sheet must be observed.
• Disposal: Ion exchange resins have to be disposed of according to the European waste nomenclature.
• Storage: Recommended to store at temperatures above freezing point of water, under roof, in dry conditions without direct sunlight. If resin freezes, thaw gradually at ambient temperature; do not accelerate.
• Packaging: Packaging stability is 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