How do calomel electrode and silver chloride electrode vary from one another?
How do calomel electrode and silver chloride electrode vary from one another?
by MTX Labs Team | Oct 14, 2023 | Electrode FAQ
Listed below is a comparative study between Saturated Calomel Electrode (SCE) and Silver – Silver Chloride Electrode (Ag/AgCl):
| Sl.No | Features/Category | Saturated Calomel Electrode (SCE) | Silver – Silver Chloride Electrode (Ag/AgCl) |
| 1 | Notation | Hg|Hg2Cl2, KCl(aq), (sat) | Ag|AgCl, KCl(aq), (sat) |
| 2 | Filling solution | Saturated KCl | 3M KCl |
| 3 | Potential Vs SHE | +0.241V | Sat KCl +0.197 VUn sat KCl +0.205 V |
| 4 | Advantages | Easy to setup and reproducible.Wider potential range.Convenient and easy to transport.No need of salt bridge | Simple and stableNon-toxic |
| 5 | Disadvantage | Toxic | Short lifetime andlight-sensitive |
| 6 | Applications | pH Measurements and Electrochemistry | Electrochemistry |