Titanoxid Teilchen, Träger für magnetisches Aufzeichnungsmedium und magnetisches Aufzeignungsmedium diese verwended

摘要

Titanium oxide particles having an average particle size of not more than 0.3 mu m a BET specific surface area of 15 to 200 m<2>/g; containing not more than 230 ppm of a soluble sodium salt, calculated as Na, and not more than 150 ppm of a soluble sulfate, calculated as SO4; and having a pH value of not less than 8; are suitable as non-magnetic particles for a non-magnetic undercoat layer of a magnetic recording medium.