| 摘要 |
<p>There is disclosed an aqueous dispersion comprising TiO2 particles, the have a size in the range 2-500 nm, wherein the particles comprise TiO2, wherein at least 50wt% of the Ti in the particles is leachable in 37% HCl, wherein the aqueous dispersion comprises at least one amine, and wherein the pH of the aqueous dispersion is above the iso-electric point of the particles comprising TiO2. One advantage is that it is possible to adjust the pH of the dispersion to adapt the pH to sensitive materials, in particular materials sensitive for low pH values. Another advantage is that the higher fraction of Ti leachable in 37% HCl gives better transparency and dispersion stability. Further it gives better redispersability.</p> |
