| 摘要 |
A titanium oxide compound according to the present invention comprises bronze-type titanium oxide or titanium oxide mainly composed of bronze-type titanium oxide, and contains calcium and/or silicon. The titanium oxide compound contains 0.005 to 2.5 mass% inclusive of calcium or 0.15 to 0.55 mass% inclusive of silicon, or contains 0.005 to 1.2 mass% inclusive of calcium and 0.15 to 0.2 mass% inclusive of silicon, or contains 0.005 to 0.15 mass% inclusive of calcium and 0.15 to 0.5 mass% inclusive of silicon. |
