| 摘要 |
<p>A double oxide represented by the formula (I): CeTixCayOz wherein x is a number of 0.2 to 0.75, y is a number of 0 to 0.5, and z is a number satisfying 1 ≤ z ≤ 2+2x+y; a yellow pigment comprising the double oxide; and a process for preparing a double oxide comprising pulverizing the double oxide obtained in the process, and classifying the resulting powder into particles composed of (a) particles having a particle diameter of less than 0.3 mu m at a frequency of not more than 30%, (b) particles having a particle diameter of not less than 0.3 mu m and less than 2 mu m at a frequency of not less than 40%, and (c) particles having a particle diameter of not less than 2 mu m at a frequency of not more than 30%.</p> |
