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Manganese pyrophosphate oxidation with

In dilute H2SO4 or HCIO4 containing oxidants (BrOs , Cr207 ) manganese(II) reacts with phosphoric acid to give the violet Mn(III) pyrophosphate complex (e = 7.5-10 ) [49-52]. The anionic Mn(III) pyrophosphate complex can be extracted into chloroform in the... [Pg.258]

The effect of acetonitrile on the kinetics of oxidation of ascorbic acid by Cu(II) and the ferrocenium ion in aqueous acetonitrile has been studied, as has the similar oxidation using the Cu(II)-tyrosine complex, for which a mechanism has been proposed. A reinvestigation of the oxidation of ascorbic acid by Fe(III) has shown catalysis by even small amounts of added chloride, 7 and the kinetics and mechanism of the oxidation of ascorbate by manganese pyrophosphate have been studied. The heat stability of aqueous solutions of ascorbic acid is increased witli reduced o gen concentrations, with Cu(II) and Fe(II) accelerating decomposition. ... [Pg.167]

In the interaction of manganese(iii) pyrophosphate with cydta, two processes are observed. Slow substitution by cydta results in an inner-sphere redox, while a more rapid outer-sphere oxidation of the ligand by [MnCHgP207)3] also takes place. [Pg.82]

See other pages where Manganese pyrophosphate oxidation with is mentioned: [Pg.919]    [Pg.77]    [Pg.253]    [Pg.273]    [Pg.73]    [Pg.57]    [Pg.585]    [Pg.107]    [Pg.202]    [Pg.650]    [Pg.871]    [Pg.879]    [Pg.96]    [Pg.227]    [Pg.650]    [Pg.871]    [Pg.614]    [Pg.114]    [Pg.440]    [Pg.479]    [Pg.485]    [Pg.355]    [Pg.196]    [Pg.80]    [Pg.268]    [Pg.88]    [Pg.265]    [Pg.266]    [Pg.182]    [Pg.614]    [Pg.47]   
See also in sourсe #XX -- [ Pg.96 ]



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Manganese oxidation

Manganese oxidation with

Manganese pyrophosphate

Manganese-oxidizing

Oxidants manganese

With manganese

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