| 摘要 |
<p>There are provided black iron-based particles comprising iron/titanium composite oxide particles having a titanium element content of 5 to 35% by atom based on an iron element content contained in the black iron-based particles, and a ratio of a titanium element content (B) in a portion of the black iron-based particles, which is dissolved therefrom at an iron element dissolution percentage of 1% by weight, to the titanium content (A) of not less than 1.0. The black iron-based particles of the present invention are not only excellent in dispersibility, acid resistance, tinting strength and blackness, but also exhibit a low magnetization value. The black iron particles can also be used in black paint and rubber or resin compositions which display an excellent acid resistance and blackness.</p> |
