CID 87901241 → Pepsamar

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Aluminum dodecyloxide was prepared in the same manner as in Example 1. The aluminum dodecyloxide was hydrolyzed to obtain an alumina slurry in the same manner as in Example 1 (Examples 5 and 6). Titanium dioxide was added in the same manner as in Example 3 (Examples 7 and 8). The pH and the solid content of the alumina slurry was adjusted in the same manner as in Example 1. The alumina slurry was aged under the conditions shown in Table 1 to obtain a colloidal sol of the alumina hydrate. The resulting colloidal sol of alumina hydrate was concentrated to a solid concentration of 15%. The colloidal sol of the alumina hydrate was spray-dried in the same manner as in Example 1 at the inlet temperature of 90° C. to obtain powdery alumina hydrate. Properties of the alumna hydrate were measured as described above. The measured properties are shown in Table 1.

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