Efficient Bleaching of Cotton With Hydrogen Peroxide Using a New Mn2O3(tmtacn)2+ Catalyst Reaction System

This study outlines fundamental aspects of the performance of Mn2O3(tmtacn)2+ catalyst (dinulclear μ-oxo bridged Mn(IV) complex of the ligand 1,4,7-trimethyl-1,4,7-triazacyclononane) as a process intensificator for bleaching of cotton with H2O2. This catalyst and related complexes have proven to be very active in the catalysed, and often selective, oxidation of organic substrates with H2O2 in non-aqueous systems 1a and provide stain bleaching activity in detergent formulations under alkaline conditions 1b.Catalytic bleaching of cotton takes place in a heterogeneous aqueous reaction