钛白粉是极性很大的粉体，本性是亲水憎油的，但如果表面吸附有空气、水和其他污染物，则在水中的分散性降低，常常需要对其作表面处理，常用处理剂为水合氧化铝和水合氧化硅。
Titanium dioxide is a very polar powder, which is hydrophilic and oil repellent in nature. However, if there are air, water and other pollutants adsorbed on the surface, the dispersion in water will be reduced, and it often needs surface treatment. The commonly used treatment agents are hydrated alumina and hydrated silica.