We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Two upright strokes, marking a junction whose potential is negligible.
Also known as: Liquid junction bars, Two vertical lines in cell notation, Salt bridge notation
A double vertical bar marks a salt bridge, and the doubling is a claim rather than a decoration: it asserts that the liquid junction potential across it has been made small enough to ignore. A single bar in the same place would say the opposite.
Denotes a salt bridge or a liquid junction whose potential is taken as negligible, in electrochemical cell notation.
Contexts: Laboratory
Asserts that the junction potential has been eliminated or made negligible, which a single bar explicitly does not.
Contexts: Laboratory
Two parallel upright strokes of letter height set close together, between two chemical formulae on one line.