styrene divinylbenzene (gel)
sulfonic acid functional group
1.1 meq/mL by wetted bed volume
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Eye Irrit. 2
13 - Non Combustible Solids
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
This resin is a strongly acidic cation exchanger, in the H+ ionic form.
Pro analysi (per analysis, or p.a.) grade chemicals are tested to similar - although not identical - standards as are ACS reagents. P.a. grade material are suitable for many routine laboratory applications.
The mesh size (20-50 mesh) corresponds to a particle size range of approximately 300 to 850 microns.
The fine mesh resin is based on a microporous copolymer of styrene and divinylbenzene (DVB) (styrene-DVB gel).
The exchange capacity is approximately 1.7 eq/L or meq/mL. One equivalent means one mole of ionizable functional group on the resin.
At elevated temperature, operation can cause degradation of functional sites and loss of the ion exchange capacity. The resin degradation depends on many variables, such as the level of dissolved oxygen and the presence of catalytic metals on the resin. In general, ~120oC (250oF) is suggested as the maximum operating temperature.
The resins should be stored in a dry cool place. The storage temperature should be kept below 50oC (120oF).Storage temperature below 0oC can cause resin freezing and temperatures below -18oC (0oF) should be avoided. Repeated freeze-thaw can cause damage on the beads. The frozen resin beads should be completely thawed out at room temperature condition before loading and use.
The ion exchange resin is tolerant of a wide range of chemical conditions, including most inorganic and organic solutions with exception of strong oxidizing agents. Solutions, such as nitric or chromic acid, bleach or chlorine-generating solutions as well as peroxide should be avoided as these will result in rapid oxidation. Exposure of resins to metal ions, such as iron, manganese and copper should be minimized in oxidizing environments as they can catalyze the oxidation.
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
To convert a cation exhcange resin from the hydrogen form to the sodium form, use two to four bed volumes of 0.5-2.0% NaCl or NaOH.
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