Bayoxide® E 33 HC is a technical iron oxide. The product has been developed particularly for the removal of arsenic or other contaminants from drinking water and non-drinking water sources. Bayoxide® E 33 HC is an adsorber medium with particularly high adsorption capacity for arsenic. Amongst other things, it can be used in the purification of industrial waste water or highly contaminated ground water. Bayoxide® E 33 HC exhibits an exceptionally high level of abrasion resistance when utilized in water purification systems.