Promoter
Micellar catalyst
k
eff
(promoter)(water)
k
eff
(promoter)(surfactant)
1,10-phenanthroline
None
11
-
1,10-phenanthroline
SDS
-
39
1,10-phenanthroline
TX-100
-
19
(Cr(VI))
T
=5 × 10
-4
mol dm
-3
, (H
2
SO
4
)
T
=0.5 mol dm
-3
, (DMSO)
T
=75 × 10
-4
mol dm
-3
, (phenantholine)T=100 × 10
-4
mol dm
-3
, (SDS)
T
=2 × 10
-4
mol dm
-3
, Temp=30°C
Table 2:
Kinetic parameters and some representative k
eff
values for the Cr(VI) oxidation of DMSO in presence of promoter and micellar catalyst (surfactant) in aqueous acidic media.
