Amber Series of Polymeric Adsorbents


DuPont™ AmberLite™ SD-2


AmberLite™ SD-2 Polymeric Adsorbent has a high specific surface area and high porosity and exceptional mechanical, thermal, and chemical stability. It is specially designed for decolorization as well as taste and odor removal in sweetener applications. AmberLite™ SD-2 complies with the U.S. Food, Drug and Cosmetic Act as amended under Food Additive Regulation 21 CFR 173.25.

This adsorbent has similar pore size distribution and adsorption properties to activated carbon so that it can be used as a direct replacement for carbon in many sweetener applications. AmberLite™ SD-2 has the additional advantage of containing macropores which improve the bulk movement of solutions in and out of the bead. The resulting improvement in kinetics leads to faster production flowrates and smaller beds.

The adsorbent is lightly functionalized with weak base groups to provide a hydrophilic character that gives the adsorbent good wettability and compatibility with acid and base regenerants. Regeneration requires only dilute caustic, dilute acid, and hot water.

More detailed information on the use of AmberLite™ SD-2 adsorbent for a particular application can be obtained from your DuPont technical contact or sales representative. 






Product Category


Amber Series of Polymeric Adsorbents


The Amber series of polymeric adsorbents are designed to remove organics from aqueous streams or vapor in oil field applications or to decolorize high fructose corn syrup in sweetener operations. With an optimized pore structure to maximize loading, these polymeric adsorbents offer a cleaner alternative to activated carbon. The adsorbent can be desorbed/regenerated for reuse.