| 摘要 |
PROBLEM TO BE SOLVED: To obtain high-purity titanium oxide powder having excellent dispersion, widely useful as a sinstered material, an ultraviolet light screening material, etc. SOLUTION: This high-purity titanium oxide powder has pH 2.0-pH 4.5 isoelectric point of zeta potential by a laser doppler method using electrophoresis and >=15 mV absolute value of zeta potential at pH 5.5. The contents of Fe, Al, Si and Na contained as impurity components in the titanium oxide powder are each <=20 ppm and that of Cl is #200 ppm.
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