| 摘要 |
The invention relates to sodium percarbonate particles with improved storage stability in the presence of builders. The inventive sodium percarbonate particles contain, on the surface thereof, between 0.01 and 1 wt. % of a hydrophobic, fine-particle oxide of the elements silicon, aluminium, or titanium or a mixed oxide of said elements. The inventive particles can be produced by mixing sodium percarbonate particles with between 0.01 and 1 wt. % of the hydrophobic, fine-particle oxide, the sodium percarbonate being preferably mixed, in the dry state, with the fine-particle oxide. The inventive particles have a high storage stability, can be handled and stored without dust formation and without caking of the particles, and can be easil y dispersed in water without leaving any residues.
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