项  目  Item

指  标  Quality Standard

TiO2含量 (TiO2 Content) , %

≥92.0

金红石含量 (Rutile Content), %

≥97.0

颜色 (Color) ,与标样比Compared with the Standard Sample

不低于Not less than

白度 (Whiteness), %

97.5±1.0

消色力 (Tint Reducing Power),与标样比Compared with the Standard Sample

≥100

105℃挥发物 (Volatile at 105℃), %

≤0.5

水溶物 (Water Soluble Objects), %

≤0.5

水悬浮液PH值 (PH Value of Aqueous Suspension)

6.5～8.5

吸油值 (Oil Absorption), g/100g

≤20.0

遮盖力（Hiding Power），g/c㎡

≤20.0

水萃取液电阻率，Ωm

≥80