Description

Lewatit TP207, Sodium Form is a high-performance, macroporous chelating ion exchange resin specifically designed for the selective removal of heavy metal ions from aqueous solutions. Its exceptional selectivity for transition metals, particularly in the presence of high concentrations of alkaline earth metals, makes it a critical component for ensuring product purity and environmental compliance. This resin is essential for industries requiring ultrapure process streams, such as hydrometallurgy, chemical production, and wastewater treatment.

Application

• Hydrometallurgy: Selective recovery of valuable metals like copper, nickel, cobalt, and zinc from leach solutions and process streams.
• Wastewater Treatment: Removal of toxic heavy metals (e.g., cadmium, lead, mercury) from industrial effluents to meet stringent discharge regulations.
• Chemical & Catalysis: Purification of process chemicals and recovery of precious metal catalysts from reaction mixtures.
• Power & Electronics: Production of ultra-high purity water for boiler feed and semiconductor manufacturing by polishing condensate and removing trace metal contaminants.
• Pharmaceutical & Food Grade: Final polishing step to remove trace metal ions from ingredients, intermediates, and high-purity water systems.
• Groundwater Remediation: Treatment of contaminated groundwater for the extraction of specific metal pollutants.

Basic Information

Product Name	Lewatit TP207, Sodium Form
CAS No.	135620-93-8
Molecular Formula	Polymeric resin (crosslinked polystyrene matrix with iminodiacetic acid functional groups)
Molecular Weight	N/A (Polymeric material)
Synonyms	Lewatit TP207; Lewatit TP 207; TP207 Chelating Resin; Iminodiacetic Acid Resin, Sodium Form; IDA Resin; Chelating Ion Exchange Resin TP207; Poly(styrene-co-divinylbenzene), iminodiacetate; Sodium poly(styrene-co-divinylbenzene)iminodiacetate
EINECS	Contact for details

Quality Control

Every batch of Lewatit TP207 is manufactured under a strict quality management system and undergoes rigorous testing to ensure consistent performance, capacity, and physical stability. Key parameters such as total capacity, moisture retention, bead size distribution, and heavy metal content are verified. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the original packaging is sealed after use to prevent moisture uptake, which can affect performance. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Spherical beads, light brown
Functional Group	Iminodiacetic acid
Ionic Form as Shipped	Sodium (Na+)
Total Capacity (min.)	≥ 1.8 eq/L
Moisture Content	50 - 60 %
Particle Size Range	0.3 - 1.2 mm
Uniformity Coefficient	≤ 1.7
pH Range (Operating)	1 - 14
Maximum Operating Temperature	80 °C (Na+ form)
Bulk Density	Approx. 750 g/L

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.