ResinTech ASM-125 is a chloride form gel hybrid anion resin selective for silica and antimony. ASM-125 contains hydrated iron oxide crystals monotonically dispersed throughout the polymer. It absorbs antimony, silica, and other contaminants by a combination of ion exchange and adsorption. ASM-125 is intended for use removing trace levels of antimony and can also be used to remove silica from process waters. ASM-125 is supplied in the chloride form.