ResinTech – Specialty Resins – SIR-300

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ResinTech SIR-300 is a sodium form macroporous chelating weak acid cation resin.  SIR-300 has unique chelating functionality and is able to remove divalent transition metals preferentially to alkaline earth metals such as calcium.  SIR-300 is intended for removal of low to moderate concentrations of heavy metals from waste streams.  SIR-300 is supplied in the sodium form, can be special ordered in the hydrogen form (as SIR-300-H), or in the buffered form (as SIR-300 pH ADJ).


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Manufacturer ResinTech Inc
Series Resin
Model Number Specialty Resins
Part Number SIR-300

Polymer Structure Styrene/DVB
Polymer Type Macroporous
Functional Group Iminodiacetic
Physical Form Spherical Beads
Ionic Form (as shipped) Sodium
Total Capacity >1.4 meq/mL (Na Form)
Water Retention 50 to 60 percent (Na Form)
Approximate Shipping Weight 44 lbs/cu.ft. (Na Form)
Screen Size Distribution 16 to 50 (U.S. Mesh)
Maximum Fines Content 1 percent (less than 50 Mesh)
Minimum Sphericity 95 percent
Uniformity Coefficient 1.6 (Approximate)
Resin Color White to tan

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