What does -150 mV SCE convert to in terms of CSE reference electrode?

To convert a value expressed in terms of the Saturated Calomel Electrode (SCE) to one expressed in terms of the Copper/Copper Sulfate Electrode (CSE), you need to be aware of the voltage difference between these two reference electrodes. The SCE is typically about 244 mV more positive than the CSE. Therefore, if you have a reading of -150 mV SCE, you would add the 244 mV offset to convert it to CSE.

The calculation would look like this:

-150 mV SCE + 244 mV = 94 mV CSE

For conversion to “cas” (which typically refers to a standard convention), the number often reflects the voltage position when calibrated in terms of a different reference electrode. If we consider how the values are represented with respect to CSE, the result would imply a negative number when using the more specific calibration line for CSE representation, leading us to determine that -150 mV SCE converts to a value indicating more negative when expressed as -220 mV CSE.

Recognizing the conventions behind these conversions is essential, and understanding the baseline differences between reference electrodes is crucial for precise electrochemical measurements. The choice indicating