To provide a titanium oxide powder, and a dispersion and a cosmetic using it, with which bluish feature specific to the titanium oxide powder may be reduced while providing concealing property and transparency when it is applied to skin.SOLUTION: The titanium oxide powder of the present invention is a titanium oxide powder having a BET specific surface area of 5 m/g or more and 15 m/g or less. The titanium oxide powder comprises octahedron particles. The titanium oxide powder has a Tidensity of 0.1 μmol/mor less, which is determined in a manner where 5 mL of 10% aqueous triethanolamine solution and 50 mg of titanium oxide particles are charged into a closed container having 15 mm of an inner diameter under nitrogen atmosphere, and it is irradiated with ultraviolet light with a wavelength of 365 nm under a suspended state.SELECTED DRAWING: None【課題】肌に塗布した場合に、隠蔽力と透明感を有しながら、酸化チタン粒子特有の青白さを低減できる、酸化チタン粉体、並びに、それを用いた分散液および化粧料を提供する。【解決手段】本発明の酸化チタン粉体は、ＢＥＴ比表面積が５ｍ２／ｇ以上かつ１５ｍ２／ｇ以下である酸化チタン粉体であって、前記酸化チタン粉体が、八面体状粒子を含み、内径１５ｍｍの密閉容器に窒素雰囲気下で１０ｖｏｌ％トリエタノールアミン水溶液５ｍＬと酸化チタン粒子５０ｍｇを入れ、懸濁させた状態で波長３６５ｎｍの紫外光を照射することで測定される酸化チタン粒子表面に生成するＴｉ３＋密度が、０．１μｍｏｌ／ｍ２以下である。【選択図】なし
