BLEACH AND OXIDATION CATALYST
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United States of America Patent
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Dec 18, 2015
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Jun 20, 2013
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The present invention concerns a method of making manganese ion-containing catalyst salts, which comprise a mononuclear or dinuclear Mn (III) and/or Mn (IV) complex based on cyclic triamine ligands and a non-coordinating silicate-based counterion. The invention also concerns compositions comprising such salts and bleaching formulations comprising the salt and a peroxy compound. The salt, and formulations comprising it, are suitable for use in catalysing oxidation, for example as a component of a laundry or dishwasher bleaching composition. The invention further relates to methods of oxidising with the bleaching formulations described herein.
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