FERROMAGNETIC CHROMIUM DIOXIDE CRYSTALS

The invention relates to ferromagnetic chromium dioxide crystals which are particularly suitable as magnetic pigments for magnetic recording media and whose surface, for the purpose of stabilization, is protected with antimony or arsenic compounds which are sparingly soluble in water, and to a proce...

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Bibliographische Detailangaben
Hauptverfasser:	SCHWARZMANN, MATTHIAS, OHLINGER, MANFRED, LEUTNER, BERND
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER INORGANIC CHEMISTRY METALLURGY PHYSICS
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Beschreibung
Zusammenfassung:	The invention relates to ferromagnetic chromium dioxide crystals which are particularly suitable as magnetic pigments for magnetic recording media and whose surface, for the purpose of stabilization, is protected with antimony or arsenic compounds which are sparingly soluble in water, and to a process for the production of chromium dioxide crystals thus stabilized by the precipitation of antimony or arsenic compounds which are sparingly soluble in water.