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Gold
(Au) working electrode is chemically stable, is a typical working
electrode. Disk working electrode is most commonly used electrochemistry
measurements, example, Cyclic Voltammetry.
Disk electrode is easy to polish electrode surface for cleaning,
and easy to calculate the surface area.
Electrode size is as shown in the figure. The gold diameter
is 2.0 mm. Electrode body material is a Kel-F , which is a fluorochemical
product also known as PCTFE (polychlorotrifluoroethylene). Outside
diameter is 1/4"(inch); 6.35 mm. The CTFE seems excellent
than PEEK in heated sulfuric acid solution from the user information.
Listed below is the result of the immersion solution each 7
days.
Reagent
Name
|
Weight
Change(%) |
| HCl(35%) |
+0.1 |
| H2SO4(98%) |
0.0 |
| HF |
0.0 |
| iNaOH(50%) |
0.0 |
| NH3(aq)(28%) |
0.0 |
| Methanol |
+0.2 |
| Acetone |
+0.1 |
| Chloroform |
+0.6 |
| Toluene |
+3.7 |
| Benzene |
+3.9 |
| MEK |
+3.3 |
| Ethyl
Acetate |
+3.6 |
| Diethyl
amine |
+1.9
|
| Phenol |
+0.1 |
Price
$198@or EUR198
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