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Reference electrodes for aqueous solutions

The primary reference electrode for aqueous solutions is the standard hydrogen electrode (SHE), expressed by H+(a=l) H2(p=105 Pa) Pt (see 11 in Section 4.1). Its potential is defined as zero at all temperatures. In practical measurements, however, other reference electrodes that are easier to handle are used [24]. Examples of such reference electrodes are shown in Table 5.4, with their potentials against the SHE. All of them are electrodes of the second kind. The saturated calomel electrode (SCE) used to be widely used, but today the saturated silver-silver chloride electrode is the most popular. [Pg.153]

Tab. 5.4 Reference electrodes for aqueous solutions and their potentials (25 °C) 11... Tab. 5.4 Reference electrodes for aqueous solutions and their potentials (25 °C) 11...
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See also in sourсe #XX -- [ Pg.153 ]



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