Colloidal dispersion of a cerium compound iv in aqueous medium and its preparation process.

摘要

The present invention relates to a novel dispersion Colloidal a cerium compound IV in aqueous medium and process for obtaining them. THE PROCEDURE invention: destabilize an aqueous dispersion Colloidal a cerium compound IV WITH THE HELP OF A salt of a monobasic acid soluble in water and with a pKa BETWEEN 2.5 AND 5.0; REMOVING THE PROCESS ACHIEVED; RESTORE AFTER dispersion in aqueous medium. COLLOIDAL DISPERSION OBTAINED the invention has weak acidity.