The major technical performances(Q/SXUS 2-2003) TIO2 content ≥98 Brightness ≥98.0 Tint Reducing power compared with the decided standard sample ≥100 Tint Reducing Power ≥1750 Water Soluble Object ≤0.50 Content of rutile ≥97.0 Mesh residue 45um ≤0.05 PH Value of Aqueou Suspension 6.5-9.0 Oil Absorption ≤22.0 Volatile at 105 Celsius ≤0.50 Dispersibility(Enterprise Standard) ≥5.00 Packing: 25kg multi—storey paper bag or 1000kg/palleted package HR-1990 rutile type Titanium dioxide is a kind of titanium dioxide pigment made by chlorination method. HR 1991 is a rutiltype titanium dioxide product manufactured by chloride process. It is an improved product of the HR 990 series with much better color-killing capacity and weather-resistance. It is comparable with the most high quality products in every quality aspect. HR 1991 is widely used in Paints, inks. Plastic goods, paper industry, etc. The major technical performances HR-1991 HR-1990 TIO2 content ≥92.0 Brightness ≥97.0 Tint Reducing power compared with the decided standard sample ≥100 Tint Reducing Power ≥1820 PH Value of Aqueou Suspension 6.0-8.5 7.0-8.5 Oil Absorption ≤21.0 Mesh residue 45um ≤0.05 Volatile at 105 Celsius ≤0.80 Dispersibility ≥5.00