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Q: Which filling solution do I use with my Princeton Applied Research reference electrode?
A: Listed below are the references electrodes sold by Princeton Applied Research and their proper filling solutions. For your convenience, part numbers are provided for all of the filling solutions available. For certain electrodes, filling solutions are not offered. This is because the solution is easily made by the user (and costing less than the shipping charges if we shipped it), custom made by the user, or should be freshly made by the user.
| Reference Electrode |
Filling Solution |
Filling Solution Chemistry |
| K0077 Saturated Calomel |
- - - - - - - * |
Saturated KCl |
| 219995 (K0260) Ag/AgCl |
1601-0167-0 |
KCl/AgCl (Sat’d in both), 0.5 oz |
| K0265 Ag/AgCl |
SL0070 |
3M NaCl/Saturated AgCl, 1.0 oz |
| G0093 Hg/HgSO4 |
- - - - - - - * |
Saturated K2SO4 |
| K0103 Non-Aqueous |
G0155 |
0.1 M AgNO3 in acetonitrile, 125 mL |
| Ag/AgCl** |
RDE0022 |
AgCl/KCl (Sat’d in both), 125 mL |
| G0159 Reference E'trode Jacket*** |
RDE0022 |
AgCl/KCl (Sat’d in both), 125 mL |
* Customer must make or provide own solution. Solution is not available from PAR.
** PAR Ag/AgCl Reference Electrode consists of 3 individual parts that must be ordered separately to form the complete reference electrode: RDE0020 Reference Electrode Tube Assembly, RDE0024 Reference Electrode Cap, RDE0022 AgCl-KCl Filling Solution.
*** For use with Model 303A Static Mercury Drop Electrode Stand only.
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