The present invention relates to a method for the production of organosols containing at least one oxide and/or oxide hydrate of metals and/or semimetals, comprising the following steps: (a) providing an aqueous solution or dispersion of at least one starting compound containing at least one metal and/or semimetal M1, (b) bringing the aqueous solution or dispersion from step (a) in contact with at least one acidic substance, (c) extracting the aqueous solution or dispersion from step (b) using at least one organic solvent or dispersion medium (L) and (d) raising the pH of the organic phase from step (c) to at least 7. The present invention additionally relates to a method for producing particles from the organosols and to the use of the organosols for producing polymer compositions or polymer coatings.
