Datasheet summary
LEWATIT® UltraPure 1231 MD
PDF datasheet mirror for LEWATIT® UltraPure 1231 MD (Lanxess LEWATIT). Verify with OEM before design.
Summary
Product identification
- Product Name: LEWATIT® UltraPure 1231 MD
- Common Description: Weakly basic, macroporous anion exchange resin with uniform particle bead size distribution based on a styrene-divinylbenzene copolymer.
- Delivery form: Free base/Cl⁻
- Functional group: Tertiary/quaternary amine
- Matrix: Styrenic
- Structure: Macroporous
- Appearance: Beige, opaque
Specified Data
- Uniformity coefficient: max. 1.1
- Mean bead size (d₅₀): 0.59(±0.05) mm
- Total capacity (delivery form): min. 1.4 eq/L
Typical Physical and Chemical Properties
- Ultrapure water rinse test (resistivity) after 80 BV: min. 4 MOhm*cm
- Ultrapure water rinse test delta TOC after 80 BV: max. 50 ppb
- Bulk density for shipment (±5%): 620 g/L
- Density: approx. 1.04 g/mL
- Water retention (delivery form): approx. 61-66 % weight
- Volume change (free base / Cl⁻ - Cl⁻): max. approx. 24 %
- Stability pH range: 0-14
- Storage time (after delivery): max. 2 years
- Storage temperature range: -20 - +40 °C
Operation
- Operating temperature: max. 40 °C
- Operating pH range during exhaustion: 0-8
- Bed depth for single column: min. 800 mm
- Backwash bed expansion per m/h (20°C): 21 %
- Specific pressure loss (15°C): 1 kPa*h/m²
- Max. pressure loss during operation: 300 kPa
- Specific flow rate: max. 40 BV/h
Regeneration
- Regeneration concentration (NaOH): approx. 2-6 wt.%
- Regeneration quantity (NaOH) co-current: min. 80 g/L resin
- Regeneration quantity (NaOH) counter-current: min. 50 g/L resin
- Regeneration contact time: min. 30 minutes
- Slow rinse at regeneration flow rate: min. 2 BV
- Fast rinse at service flow rate: min. 2 BV
Additional Information & Regulations
- Safety precautions: Strong oxidants (e.g., nitric acid) can cause violent reactions. Observe the safety data sheet.
- Disposal: Follow European waste nomenclature within the European Community.
- Storage: Recommended to store above freezing point, under roof, dry, away from direct sunlight. If frozen, thaw gradually at ambient temperature. Packaging stability is limited to 24 months.
Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.