Acid concentration (Initial pH) |
Procedure (Final pH) |
Fe remaining in
the aqueous phase (%) |
Al remaining in the aqueous phase
(%) |
0.50 M OA
(0.93)
|
KOH addition
(13.87) |
0.001 |
93.2 |
|
H2SO4 addition (10.52) |
0.002 |
0.16 |
0.25 M KTO (1.51) |
KOH addition (13.85) |
0.002 |
92.8 |
|
H2SO4 addition (10.56) |
0.002 |
0.15 |
0.50 M KHO (2.47) |
KOH addition (13.88) |
0.001 |
92.6 |
|
H2SO4 addition (10.48) |
0.001 |
0.24 |