MAGNETIC FLUIDS, IN PARTICULAR FERROFLUIDS, AND PROCESS FOR OBTAINING THEM

摘要

P NEW FERROFLUIDS. / P P THEY ARE ESSENTIALLY COMPRISED OF AQUEOUS SOLUTION OF FE III POLYOXOANIONS AND AT LEAST ONE OXIDATION DEGREE II METAL OF THE FIRST SERIES OF TRANSITION METALS, WITH AN ASSOCIATED CATION, ESPECIALLY CHOSEN AMONG: BR/ (BOPI DRAWING) BR/ / P P APPLICATION IN PARTICULAR TO THE PRODUCTION OF LEVITATION OR AUTO-SUSTAINATION SYSTEMS, AND TO THE REALIZATION OF CONTACTORS OR ROTATING PASSAGES. / P