Cobalt-containing iron-oxide pigments, process for their production and their use

摘要

The present invention relates to magnetic, cobalt-containing iron-oxide pigments having a Co content of 0.1 to 10 % by weight and an Fe<2+>/Fe<3+> ratio of 0.15 to 0.50, a process for their production, and also their use in magnetic storage materials. In addition, the invention relates to magnetic data, sound or image stores.