Table 2.
Electrochemical degradation of APIs in para‐periodate platform oxidizer process.[a]
|
| |||
|---|---|---|---|
|
API (0.8–3 mm) |
Degradation [kilo equiv. of Na3H2IO6] |
||
|
>90 % |
>95 % |
>99 % |
|
|
|
0.208 |
0.241 |
0.319 |
|
|
0.507 |
0.644 |
0.962 |
|
|
direct complete glycol cleavage in contact with anolyte solution |
||
|
|
0.056 |
0.072 |
0.110 |
[a] Reaction conditions: Flow electrolyzer (BDD|Nafion membrane|stainless steel, 4×12 cm2=48 cm2); dye (0.8–3 mm), NaOH (4 m), Na3H2IO6 (0.21 m), H2O (200 mL), 312 mA cm−2, Q=9–12 F, RT. All kilo equiv. of periodate were calculated as shown in section 11 (Supporting Information). [b] Concentration of 0.8 mm. [c] Degradation determined by LC–MS. [d] Degradation without electricity. [e] Concentration of 3 mm. [f] Degradation determined by 1H NMR spectroscopy.