Влияние способа получения на состав магнитных жидкостей на основе оксида железа (II, III)

Abstract

The comparative preparation of the magnetite magnetic liquids by the conventional and the novel methods are described and some characteristics of the obtained liquids are discussed. By contrast to the conventional method, according to novel method the oleic acid was prepared by the interaction of sodium oleate and hydrochloric acid coincidentally with the deposition of the magnetite. It was shown that disperse phase of the magnetic liquid, obtained by the novel method, contain Fe3O4 and paramagnetic iron oleate and is characterised by a larger dispersity as compared to the conventional method.