Heavy Metal Selective, Chelating Exchange Resin, Macroporous, Sodium Form

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ResinTech SIR-300 is a sodium form macroporous chelating weak acid cation resin. Its unique chelating functionality removes divalent transition metals preferentially to alkaline earth metals such as calcium. Since the sodium form is highly alkaline, pH adjustment is usually required before first use. SIR-300 is intended for the removal of low to moderate concentrations of heavy metals from waste streams.

  • Trace Metals Reduction

Typical Properties

Polymer Matrix Styrenic Macroporous
Ionic Form Sodium
Functional Group Iminodiacetic
Physical Form Spherical Beads
Color White to Tan
Particle Size 16 to 50 US Mesh (297 - 1190 μm)
Minimum Sphericity 95%
Uniformity Coefficient 1.6
Reversable Swelling H → Na 30% to 40%
Temperature Limit 212°F (100°C)
Total Exchange Capacity (meq/mL) 1.1
Moisture Retention 50% to 60%
Shipping Weight 44 - 46 lbs/ft³ (705 - 737 g/L)
REACH Registered YES
Regenerability TRUE

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