Item First Grade Titanium dioxide content % ( m / m) e98.0 Color ( compared with the standard sample) Approximatively Fe2O3d0.06 SO3d0.15 Reducing power ( compared with the standard sample) e100 105 volatile % ( m/ m) d0.5 Water-soluble matter % ( m/ m) 0.5 PH value of aqueous suspension 6 8 Oil absorption g/ 100g 26 Screen residue( 45 m mesh) % ( m/ in) d0.30 Water extract resistivity m e20 contact person : Karen sun by karensedel at chinayanliao.com