S957, Mixed Acid Cation Resin

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Catalog No. Packaging Size Price Quantity
50237-250 250 ml
50237-1 1000 ml
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Purolite® S957 Mixed Acid Cation Resin is a specially developed Monophos™ chelating resin, which incorporates phosphonic, and sulfonic functional groups on a mechanically and osmotically resistant matrix. These combined properties give it high selectivity for iron and other transitional metals, even in acidic solutions. S957 has been especially designed for the selective removal of ferric iron from acidic solutions, such as copper electrolyte or from nickel, cobalt and zinc processing solutions. S957 can also be used in potable water applications for the selective removal of trace levels of selected metals from neutral pH waters. Its selectivity for uranium and other lanthanide elements should give good opportunities for its successful employment in other areas.

  • Application - For Removal of Iron from Acidic Solutions
  • Polymer Structure - Macroporous polystyrene crosslinked with divinylbenzene
  • Appearance - Spherical Beads
  • Functional Group - Phosphonic and Sulfonic Acid
  • Ionic Form as Shipped - H+
Product Information
Total Capacity (min.) 18 g/l (min.) (Fe Capacity)
Moisture Retention 55 - 70 % (H+ form)
<425 µm (max.) 5 %
Uniformity Coefficient (max.) 1.4
Specific Gravity 1.12
Shipping Weight (approx.) 710 - 760 g/l (44.4 - 47.5 lb/ft3)

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