LEWATIT® UltraPure 1294 MD

Summary

Product identification

• Product Name: LEWATIT® UltraPure 1294 MD
• Product Type: "ready to use" mixed bed
• Application: Final polishing in Ultrapure water applications
• Components: High grade gel type components, specifically a strong acid cation (SAC) and a strong base anion (SBA) component.
• Special Properties: High capacity for boron and silica due to a special conversion process of the SBA component. Extremely low particle release due to avoiding excessive mechanical stress during mixing. Narrow diameter distribution of gel type components. Monodisperse production provides high physical and chemical stability.

Operating limits

• Operating Temperature: max. 40 °C
• Operating pH Range (during exhaustion): 0 - 14
• Max. Pressure Loss during operation: 200 kPa
• Stability pH Range: 0 - 14
• Storage Temperature Range: -20 - +40 °C
• Storage Time (after delivery): max. 1 year (packaging stability limited to 24 months)

Feed water

• Not specified.

Product water

• Ultrapure water rinse test (resistivity): min. 18 MOhm*cm after 80 BV
• Ultrapure water rinse test delta TOC: max. 1.5 ppb after 80 BV

Electrical

• Not applicable.

Mechanical / hydraulic

• Matrix: Styrenic
• Structure: Gel
• Appearance: Dark brown / light brown, translucent
• Uniformity coefficient (SAC component): max. 1.1
• Uniformity coefficient (SBA component): max. 1.1
• Mean bead size (SAC component): d₅₀ 0.60 (+-0.05) mm
• Mean bead size (SBA component): d₅₀ 0.67 (+-0.06) mm
• Total capacity (SAC component H⁺ form): min. 2.1 eq/L
• Total capacity (SBA component OH⁻ form): min. 1.1 eq/L
• Bulk density for shipment (+/- 5%): 710 g/L
• Water retention (SAC component H⁺ form): approx. 45 - 50 % by weight
• Water retention (SBA component OH⁻ form): approx. 59 - 65 % by weight
• Volume change (during exhaustion): max. approx. -15 %
• Bed depth for single column: min. 600 mm
• Specific pressure loss (15°C): 1 kPa*h/m²
• Specific flow rate: max. 100 BV/h

Chemistry

• Functional group: Quaternary ammonium, type 1 /sulfonic acid
• Form: H⁺/OH⁻

Additional Information

• Packaging: Special packaging to avoid external contamination.
• Safety: Observe safety data sheet. Avoid contact with strong oxidants.
• Disposal: Dispose according to European waste nomenclature.
• Storage: Store above freezing point, under roof, dry, away from direct sunlight. If frozen, thaw gradually at ambient temperature.

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