ORGANIC COLLOIDAL DISPERSION OF MONOCRYSTALLINE PARTICLES OF A RARE EARTH COMPOUND.

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The invention concerns an organic colloidal dispersion comprising : particles of at least a compound based on at least a rare earth, at least an acid, and at least a diluent, characterised in that at least 90% of the particles are monocrystalline. The invention also concerns the method for preparing said dispersion and its use as additive of diesel fuel for internal combustion engines.