Acros Organics Dowex 50WX8 Strong Acid Cation Exchange Ion-Exchange Resin 2.5kg

The Acros Organics Dowex 50WX8 ion-exchange resin (model 335340025) is a high-capacity, strong acid cation exchanger widely used in analytical separations, deionization, and sample preparation within research and industrial biotechnology. Manufactured in the USA, this resin features sulfonic acid functional groups delivering robust ion-exchange performance essential in molecular diagnostics and bioprocessing workflows.

Key specifications include:

• Particle size: 100–200 mesh (fine beads or spheres) with strict particle size distribution limits (max 15% cumulative on 60 mesh, max 15% through 170 mesh)
• Physical form: Moist beads ensuring optimal hydration and ion accessibility
• Ion-exchange capacity: Minimum wet volume capacity of 1.7 meq/mL in H form, supporting efficient cation removal
• Water retention capacity: 50–58%, promoting resin stability and longevity during chromatography and biomanufacturing processes
• Color: Beige to brown, indicating consistent resin quality
• Packaging: Delivered in 2.5 kg plastic bottles for ease of laboratory handling and storage
• Chemical properties: Insoluble in water with stable polymer matrix, enhancing durability under stringent process conditions

This resin’s chemical identity is confirmed with CAS number 11119-67-8 and MDL number MFCD00132726, and it is classified under harmonized code 3903.90.0000 for polymers of styrene. Its strong acid cation exchange mechanism and physical properties make it critical for molecular cloning workflows, synthetic biology research, and purification steps in biopharmaceutical production pipelines. The resin is widely adopted in both biotechnology and analytical chemistry due to its reliable performance in cation exchange chromatography and deionization steps crucial for preparing high-purity biological samples.