| 摘要 |
According to the present invention, in the production process comprising a step of hydrolyzing titanium tetrachloride, by adding sulfuric acid at a stage in which a reaction conversion rate of the titanium tetrachloride is not less than 80% and less than 100%, it is possible to provide ultrafine particles of titanium dioxide having a small average primary particle diameter (D BET ) and a large water absorption. |
