Bulk electrolysis is also known as potentiostatic coulometry or controlled potential coulometry. The experiment is a form of coulometry which generally employs a three electrode system controlled by a potentiostat. In the experiment the working electrode is held at a constant potential (volts) and current (amps) is monitored over time (seconds). In a properly run experiment an analyte is quantitatively converted from its original oxidation state to a new oxidation state, either reduced or oxidized. As the substrate is consumed, the current also decreases, approaching zero when the conversion nears completion.
The results of a bulk electrolysis are visually displayed as the total coulombs passed (total electric charge) plotted against time in seconds, even through the experiment measures electric current (amps) over time. This is done to show that the experiment is approaching an expected total number of coulombs.
Other articles related to "bulk electrolysis, electrolysis":
... the current efficiency or faradaic efficiency of a given process determined by a bulk electrolysis experiment ... are of interest, it is often difficult to set an electrolysis potential a "safe" distance (such as 200 mV) past a redox event ...
... coulometry is a technique most commonly referred to as "bulk electrolysis" ... Bulk electrolysis is often used to unambiguously assign the number of electrons consumed in a reaction observed through voltammetry ... Since mass transfer is so important the solution is stirred during a bulk electrolysis ...
Famous quotes containing the word bulk:
“The truth is that a Pigmy and a Patagonian, a Mouse and a Mammoth, derive their dimensions from the same nutritive juices.... [A]ll the manna of heaven would never raise the Mouse to the bulk of the Mammoth.”
—Thomas Jefferson (17431826)