| http://www.w3.org/ns/prov#value | - The electrolyte is a salt solution such as NaCl or KCl and the voltages involved are typically between -1.5 V and +1.5 V. When barrier 20 is composed of silver metal, a potential of +0.7 V vs. an Ag/AgCl reference electrode is sufficient to dissolve barrier 20.
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