Facts MagnetsChemical PropertiesFerrite magnets have BaFe12O19 or SrFe12O19 stoichiometry and are ceramic oxides. They are made up of approx. 80% of iron oxide (Fe2O3) and approx. 20% of barium oxide (BaO) or strontium oxide (SrO). The raw materials are easy to purchase and have a low cost. These magnets are resistant to many chemical substances, such as dissolvent, bleach and weak acids. Organic and inorganic strong acids such as oxalic acids, hydrochloric acids, sulphuric acids or hydrofluoric acids, determine stability mainly by temperature, concentration and corrosion timing of the environment. Normally, stability is determined by long-term experiments. Mechanical PropertiesMagnetic properties are also found in the following pages in diagrams and charts. Ferrite working temperatures are mainly between –40ºC and 250ºC.Magnetic PropertiesMagnetic properties are also found in the following pages in diagrams and charts. Ferrite working temperatures are mainly between –40ºC and 250ºC.More info |